Thursday 7 February 2013


    Subdural hematoma



A subdural hematoma is a collection of blood on the surface of the brain.

Causes

Subdural hematomas are usually the result of a serious head injury. When one occurs in this way, it is called an "acute" subdural hematoma. Acute subdural hematomas are among the deadliest of all head injuries. The bleeding fills the brain area very rapidly, compressing brain tissue. This often results in brain injury and may lead to death.
Subdural hematomas can also occur after a very minor head injury, especially in the elderly. These may go unnoticed for many days to weeks, and are called "chronic" subdural hematomas. With any subdural hematoma, tiny veins between the surface of the brain and its outer covering (the dura) stretch and tear, allowing blood to collect. In the elderly, the veins are often already stretched because of brain atrophy (shrinkage) and are more easily injured.
Some subdural hematomas occur without cause (spontaneously).
The following increase your risk for a subdural hematoma:
  • Anticoagulant medication (blood thinners, including aspirin)
  • Long-term abuse of alcohol
  • Recurrent falls
  • Repeated head injury
  • Very young or very old age

Symptoms

  • Confused speech
  • Difficulty with balance or walking
  • Headache
  • Lethargy or confusion
  • Loss of consciousness
  • Nausea and vomiting
  • Numbness
  • Seizures
  • Slurred speech
  • Visual disturbances
  • Weakness
In infants:
  • Bulging fontanelles (the "soft spots" of the baby's skull)
  • Feeding difficulties
  • Focal seizures
  • Generalized tonic-clonic seizure
  • High-pitched cry
  • Increased head circumference
  • Increased sleepiness or lethargy
  • Irritability
  • Persistent vomiting
  • Separated sutures (the areas where growing skull bones join)

Exams and Tests

Always get medical help after a head injury. Older persons should receive medical care if they shows signs of memory problems or mental decline, even if you do not think they have had an injury. An exam should include a complete neurologic exam.
Your doctor may order a brain imaging study if you have any of the following symptoms:
  • Confused speech
  • Difficulty with balance or walking
  • Headache
  • Inability to speak
  • Lethargy or confusion
  • Loss of consciousness
  • Nausea and vomiting
  • Numbness
  • Recent cognitive decline in an elderly person, even without a history of brain injury
  • Seizures
  • Slurred speech
  • Visual disturbance
  • Weakness
A CT scan or MRI scan likely would be done to evaluate for the presence of a subdural hematoma.

Treatment

A subdural hematoma is an emergency condition.
Emergency surgery may be needed to reduce pressure within the brain. This may involve drilling a small hole in the skull, which allows blood to drain and relieves pressure on the brain. Large hematomas or solid blood clots may need to be removed through a procedure called a craniotomy, which creates a larger opening in the skull.
Medicines used to treat a subdural hematoma depend on the type of subdural hematoma, the severity of symptoms, and how much brain damage has occurred. Diuretics and corticosteroids may be used to reduce swelling. Anticonvulsion medications, such as phenytoin, may be used to control or prevent seizures.

Outlook (Prognosis)

The outlook following a subdural hematoma varies widely depending on the type and location of head injury, the size of the blood collection, and how quickly treatment is obtained.
Acute subdural hematomas present the greatest challenge, with high rates of death and injury. Subacute and chronic subdural hematomas have better outcomes in most cases, with symptoms often going away after the blood collection is drained. A period of rehabilitation is sometimes needed to assist the person back to his or her usual level of functioning.
There is a high frequency of seizures following a subdural hematoma, even after drainage, but these are usually well controlled with medication. Seizures may occur at the time the hematoma forms, or up to months or years afterward.

Possible Complications

  • Brain herniation (pressure on the brain severe enough to cause coma and death)
  • Persistent symptoms such as memory loss, dizziness, headache, anxiety, and difficulty concentrating
  • Seizures
  • Temporary or permanent weakness, numbness, difficulty speaking

When to Contact a Medical Professional

A subdural hematoma requires emergency medical attention. Call 911 or your local emergency number, or go immediately to an emergency room after a head injury.
Spinal injuries often occur with head injuries, so try to keep the person's neck still if you must move him or her before help arrives.

Prevention

Always use safety equipment at work and play to reduce your risk of a head injury. For example, use hard hats, bicycle or motorcycle helmets, and seat belts. Older individuals should be particularly careful to avoid falls.

Alternative Names

Subdural hemorrhage

References

Biros MH, Heegaard WG. Head injury. In: Marx JA, ed. Rosen’s Emergency Medicine: Concepts and Clinical Practice. 7th ed. Philadelphia, Pa: Mosby Elsevier; 2009:chap 38.

Monday 4 February 2013


80 Work Safety Tips to Remind 

Employees to Work Safe

Work Safety Tips 1-10

General Notices

safety is a team effort
1. Safety is a team effort. Ensure that every member of the crew knows the safety requirements before the job is started.
2. Safety is your responsibility.
3. Always communicate with co-workers during a job in order to maintain safety.
4. Don't create unnecessary hazards. Notify others of both new and old ones.
5. Never take shortcuts. Always follow correct procedures.
6. Wear metal mesh gloves to protect your hands when using sharp knives regularly.
7. Keep your work area clean and orderly.
8. If you make a mess, clean it up. Never let safety be someone else's job.
9. Keep access clear to emergency exits, equipment, and equipment shutoffs.
10. Prevent accidents by clearly identifying any hazards that cannot be removed.

Safety Tips for Work 11 - 20

It is everyones job

safety should be your first thought
11. Safety should be your first thought, not an afterthought.
12. Safety is everyone's assignment.
13. You should wear a hard hat if there exists the hazard of falling objects.
14. Do not approach operating machinery from the blind side; let the operator see you.
15. Be alert to hazards that could affect you and your fellow employees.
16. Learn safe work practices.
17. When in doubt about performing a task safely, contact your supervisor for instruction and training.
18. Pay attention to your work surroundings.
19. Follow the safety instructions that you are given.
20. Always be alert and awake on the job.

Tips 21 - 30

Don't risk your safety at work.

safety-risk
21. Never take risks when it comes to your safety.
22. Learn where fire extinguishers and first aid kits are located.
23. Always perform your assigned task in a safe and proper manner; do not take shortcuts. The taking of shortcuts and the ignoring of established safety rules is a leading cause of employee injury.
24. Read and obey safety signs and tags.
25. Appropriate clothing and footwear must be worn on the job at all times.
26. Report any observed unsafe condition to your supervisor or employer.
27. You should not perform any task unless you are trained to do so and are aware of the hazards associated with the task.
28. Never remove or by-pass safety devises.
29. Maintain a general condition of good housekeeping in all work areas at all times.
30. Do not breath in hazardous fumes or chemicals, wear a breathing mask if your area does not have proper ventilation and you are using toxic chemicals.

Work Safety Tips 31 - 33

Lifting Tips

safe lifting procedures
31. When lifting grip objects with both hands.
32. Lift with your legs and not your back.
33. Wear a back brace if your job requires consistent lifting.

Tool Safety Tips for Work 34 - 39

Tool Tips

always wear protective equipment
34. Use the right tool for the right job.
35. Use tools correctly and for the intended purpose only.
36. Keep tools in good condition.
37. Put tools away after use, don't leave things lying around where they can fall or hit someone.
38. Tools carried in pockets or misplacing them can cause painful injuries.
39. Always wear your required protective equipment

Machine Safety Tips 40-45

When dealing with large machines

work safety40. Never remove safety guards that are there to protect you or leave machinery running unattended that requires you to operate it.
41. Obey all operating instructions on machinery that alert you to hazards on the job.
42. Communicate with those around you so they know where you are, what you are doing and what your next move will be.
43. When near moving machines, avoid wearing jewelry or clothing that might get caught in the moving parts, such as large gloves, rings, bracelets or loose sleeves.
44. Keep fingers away from moving machinery.
45. Turn machines completely off before you put your hands into them to release a jam.

More Workplace Safety Guidlines 46-50

General Tips!

safety
46. Stick to safe work practices.
47. Work Safely around the clock
48. Safe Accident Free Environment Takes You (Acronym for S-A-F-E-T-Y)
49. Safety is good for your health and happiness
50. When operating tow-motors, be on the lookout for Pedestrians Overhangs & Obstacles

Work Safety Tips 51-60

Sixty tips for your safety and health

wear gloves
51. Always wear gloves when handling parts with sharp edges that could cut you.
52. Inform co-workers of safety hazards that you see around them.
53. Be conscience of what other people around you are doing.
54. Drink plenty of fluids to prevent dehydration in hot weather.
55. When in a pinch it's better to be safe than sorry.
56. Accidents ARE preventable - work safely and follow instructions.
57. Shortcuts don't cut it.
58. Think before you act.
59. The safe way is the right way.
60. Replace damaged electrical cords, don't patch. It can be a fire hazard.

Workplace Safety Tips 61-70

Even more valuable tips!

lifting heavy objects
61. When carrying a heavy load, turn by moving your feet, not by twisting your body. Twisting with your body can lead to back pain.
62. Use caution when working on ladders. Never climb a ladder that is wobbly or not secure.
63. Use machinery only if authorized and trained to use it.
64. Stay focused when working on elevated platforms, roofs, or up high and don't get distracted.
65. Read labels on heavy machinery alerting you to hazards.
66. Alert supervisors immediately if you see unsafe conditions or activities being performed.
67. Sit in an upright position when typing and operating a computer.
68. Don't work at potentially dangerous tasks if you are extremely tired, hung-over, or otherwise unfit for work.
69. Never walk in front of a forklift carrying a load, the operator may not see you.
70. Report serious injuries immediately to your supervisor.

Safety Tips 71-80

Ergonomics and Lifting Advice

71. Take short breaks during long periods of repetitive motion
72. Avoid sitting with an awkward posture.
73. Prevent ergonomic disorders by keeping wrists in a neutral position and not bent backwards.
74. When lifting objects keep them close to your body to avoid additional strain.
75. Always have a clear line of sight around you.
76. Grasp objects firmly and test the weight of the load if you are unsure if you can carry something heavy.
77. Lift weighty objects slowly and smoothly and do not bend at your waste, crouch with your feet keeping your back straight.
78. Turn your feet to change directions while lifting, don't twist your body, this puts strain on your back.
79. Wear dust masks in any areas with debris and flying particles in the air.
80. Sit at a computer with your feet flat on the floor.



Top 10 Electrical Safety Tips

We may think we know all there is to know about the dangers of electrical mishaps, but there are still electrical safety rules to be strictly observed.
Here are some tips to help you maintain proper caution, to help keep you and your family safe around the house, and to avoid electrical fires and accidents:
1 Make it a habit to turn off electric games and appliances when they're not in use. Before going to bed, make it a routine to check that all electrical devices not in use are properly shut off.
2 Never ever overload sockets. It's a safe bet to always use just one plug in every socket. Even if you are using the adapter make sure it's the bar type that also has a fuse. The total output of all plugs in the adapter should be no more than the specified rating.
3 Adding a residual current device is an easy way to cut off power and prevent shocks. Another sensible option is to fix one on the fuse box. Alternately, you can choose a portable one, which are ideal for outdoor jobs such as using the lawnmower or vacuum cleaner.
4 It's a good idea to periodically keep an eye on the condition of the plugs and sockets. You should pay attention to any burnt or frayed wires on appliances. It's best to get the services of a professional electrician to fix such problems.
5 Never allow wires or leads to run under carpets where they remain invisible. Besides being a tripping hazard its hard to see the state of the cables or wires.
6 Never ever allow electric wires or cables to trail over kitchen appliances like toasters or stove tops. These are very dangerous and are hazards of the worst kind. Also, never finger the toaster with anything, especially with any metal.
7 Do not stick in nails or try to make holes in the walls of your home. It's a potential danger since you may not know what's behind your point of entry. And you should also take care when digging or excavating as you run the risk of cutting live underground wire.
8 Avoid mixing liquids and electricity. They should be kept as far apart as possible. Touch your appliances with dry hands only. Avoid placing water or other liquids on top of electrical appliances. Many of us use the TV top or microwave as a counter but that's actually very dangerous if liquids spill into open slots and cause a short circuit. And while using a steam kettle, do not fill it up while it's still plugged on.
9 It's best to avoid taking major electrical appliances into a bathroom. Always check for the wire coding on appliances like hair dryers, hair straighteners or radios that are often used in bathrooms.
10 Make sure that your children do not walk in wet into the house directly from the rain or your swimming pool. Your home is a place that is full of electrical sources and could pose a threat to their safety. Get them to dry out completely before entering the house.

Friday 1 February 2013


        Hazard Reporting by Employee

       

What should I do if I notice a hazard?

You should report it immediately to your supervisor. You do not need to wait for an inspection team to come by. In fact, health and safety legislation requires employees to report hazards to their supervisor.
The immediate hazard reporting process allows employees to report hazardous conditions or practices as they notice them. This procedure allows for prompt reporting and subsequent corrective action without waiting for the next round of regular inspections.
Hazards can be reported verbally or by filling a simple form available at bulletin boards or other conspicuous places. The following is an example of such a form.
Hazard Report Form - Example
Name:Date:
Location:
Equipment:
Description of the hazard:




Suggested corrective action:




Signature:
Supervisor's remarks:
Corrective action taken:
Signature of Supervisor:
Date:

     Workplace Housekeeping - Basic Guide

                
BY UMUKPEDI EMMANUEL

Why should we pay attention to housekeeping at work?

Effective housekeeping can eliminate some workplace hazards and help get a job done safely and properly. Poor housekeeping can frequently contribute to accidents by hiding hazards that cause injuries. If the sight of paper, debris, clutter and spills is accepted as normal, then other more serious health and safety hazards may be taken for granted.
Housekeeping is not just cleanliness. It includes keeping work areas neat and orderly; maintaining halls and floors free of slip and trip hazards; and removing of waste materials (e.g., paper, cardboard) and other fire hazards from work areas. It also requires paying attention to important details such as the layout of the whole workplace, aisle marking, the adequacy of storage facilities, and maintenance. Good housekeeping is also a basic part of accident and fire prevention.
Effective housekeeping is an ongoing operation: it is not a hit-and-miss cleanup done occasionally. Periodic "panic" cleanups are costly and ineffective in reducing accidents.

What is the purpose of workplace housekeeping?

Poor housekeeping can be a cause of accidents, such as:
  • tripping over loose objects on floors, stairs and platforms
  • being hit by falling objects
  • slipping on greasy, wet or dirty surfaces
  • striking against projecting, poorly stacked items or misplaced material
  • cutting, puncturing, or tearing the skin of hands or other parts of the body on projecting nails, wire or steel strapping
To avoid these hazards, a workplace must "maintain" order throughout a workday. Although this effort requires a great deal of management and planning, the benefits are many.

What are some benefits of good housekeeping practices?

Effective housekeeping results in:
  • reduced handling to ease the flow of materials
  • fewer tripping and slipping accidents in clutter-free and spill-free work areas
  • decreased fire hazards
  • lower worker exposures to hazardous substances (e.g. dusts, vapours)
  • better control of tools and materials, including inventory and supplies
  • more efficient equipment cleanup and maintenance
  • better hygienic conditions leading to improved health
  • more effective use of space
  • reduced property damage by improving preventive maintenance
  • less janitorial work
  • improved morale
  • improved productivity (tools and materials will be easy to find)

How do I plan a good housekeeping program?

A good housekeeping program plans and manages the orderly storage and movement of materials from point of entry to exit. It includes a material flow plan to ensure minimal handling. The plan also ensures that work areas are not used as storage areas by having workers move materials to and from work areas as needed. Part of the plan could include investing in extra bins and more frequent disposal.
The costs of this investment could be offset by the elimination of repeated handling of the same material and more effective use of the workers' time. Often, ineffective or insufficient storage planning results in materials being handled and stored in hazardous ways. Knowing the plant layout and the movement of materials throughout the workplace can help plan work procedures.
Worker training is an essential part of any good housekeeping program. Workers need to know how to work safely with the products they use. They also need to know how to protect other workers such as by posting signs (e.g., "Wet - Slippery Floor") and reporting any unusual conditions.
Housekeeping order is "maintained" not "achieved." Cleaning and organization must be done regularly, not just at the end of the shift. Integrating housekeeping into jobs can help ensure this is done. A good housekeeping program identifies and assigns responsibilities for the following:
  • clean up during the shift
  • day-to-day cleanup
  • waste disposal
  • removal of unused materials
  • inspection to ensure cleanup is complete
Do not forget out-of-the-way places such as shelves, basements, sheds, and boiler rooms that would otherwise be overlooked. The orderly arrangement of operations, tools, equipment and supplies is an important part of a good housekeeping program.
The final addition to any housekeeping program is inspection. It is the only way to check for deficiencies in the program so that changes can be made. 

What are the elements of an effective housekeeping program?

Dust and Dirt Removal

In some jobs, enclosures and exhaust ventilation systems may fail to collect dust, dirt and chips adequately. Vacuum cleaners are suitable for removing light dust and dirt. Industrial models have special fittings for cleaning walls, ceilings, ledges, machinery, and other hard-to-reach places where dust and dirt may accumulate.
Special-purpose vacuums are useful for removing hazardous substances. For example, vacuum cleaners fitted with HEPA (high efficiency particulate air) filters may be used to capture fine particles of asbestos or fibreglass.
Dampening (wetting) floors or using sweeping compounds before sweeping reduces the amount of airborne dust. The dust and grime that collect in places like shelves, piping, conduits, light fixtures, reflectors, windows, cupboards and lockers may require manual cleaning.
Compressed air should not be used for removing dust, dirt or chips from equipment or work surfaces.

Employee Facilities

Employee facilities need to be adequate, clean and well maintained. Lockers are necessary for storing employees' personal belongings. Washroom facilities require cleaning once or more each shift. They also need to have a good supply of soap, towels plus disinfectants, if needed.
If workers are using hazardous materials, employee facilities should provide special precautions such as showers, washing facilities and change rooms. Some facilities may require two locker rooms with showers between. Using such double locker rooms allows workers to shower off workplace contaminants and prevents them from contaminating their "street clothes" by keeping their work clothes separated from the clothing that they wear home.
Smoking, eating or drinking in the work area should be prohibited where toxic materials are handled. The eating area should be separate from the work area and should be cleaned properly each shift.

Surfaces

Floors: Poor floor conditions are a leading cause of accidents so cleaning up spilled oil and other liquids at once is important. Allowing chips, shavings and dust to accumulate can also cause accidents. Trapping chips, shavings and dust before they reach the floor or cleaning them up regularly can prevent their accumulation. Areas that cannot be cleaned continuously, such as entrance ways, should have anti-slip flooring. Keeping floors in good order also means replacing any worn, ripped, or damaged flooring that poses a tripping hazard.
Walls: Light-coloured walls reflect light while dirty or dark-coloured walls absorb light. Contrasting colours warn of physical hazards and mark obstructions such as pillars. Paint can highlight railings, guards and other safety equipment, but should never be used as a substitute for guarding. The program should outline the regulations and standards for colours.

Maintain Light Fixtures

Dirty light fixtures reduce essential light levels. Clean light fixtures can improve lighting efficiency significantly.

Aisles and Stairways

Aisles should be wide enough to accommodate people and vehicles comfortably and safely. Aisle space allows for the movement of people, products and materials. Warning signs and mirrors can improve sight-lines in blind corners. Arranging aisles properly encourages people to use them so that they do not take shortcuts through hazardous areas.
Keeping aisles and stairways clear is important. They should not be used for temporary "overflow" or "bottleneck" storage. Stairways and aisles also require adequate lighting.

Spill Control

The best way to control spills is to stop them before they happen. Regularly cleaning and maintaining machines and equipment is one way. Another is to use drip pans and guards where possible spills might occur. When spills do occur, it is important to clean them up immediately. Absorbent materials are useful for wiping up greasy, oily or other liquid spills. Used absorbents must be disposed of properly and safely.

Tools and Equipment

Tool housekeeping is very important, whether in the tool room, on the rack, in the yard, or on the bench. Tools require suitable fixtures with marked locations to provide orderly arrangement, both in the tool room and near the work bench. Returning them promptly after use reduces the chance of being misplaced or lost. Workers should regularly inspect, clean and repair all tools and take any damaged or worn tools out of service.

Maintenance

The maintenance of buildings and equipment may be the most important element of good housekeeping. Maintenance involves keeping buildings, equipment and machinery in safe, efficient working order and in good repair. This includes maintaining sanitary facilities and regularly painting and cleaning walls. Broken windows, damaged doors, defective plumbing and broken floor surfaces can make a workplace look neglected; these conditions can cause accidents and affect work practices. So it is important to replace or fix broken or damaged items as quickly as possible. A good maintenance program provides for the inspection, maintenance, upkeep and repair of tools, equipment, machines and processes.

Waste Disposal

The regular collection, grading and sorting of scrap contribute to good housekeeping practices. It also makes it possible to separate materials that can be recycled from those going to waste disposal facilities.
Allowing material to build up on the floor wastes time and energy since additional time is required for cleaning it up. Placing scrap containers near where the waste is produced encourages orderly waste disposal and makes collection easier. All waste receptacles should be clearly labelled (e.g., recyclable glass, plastic, scrap metal, etc.).

Storage

Good organization of stored materials is essential for overcoming material storage problems whether on a temporary or permanent basis. There will also be fewer strain injuries if the amount of handling is reduced, especially if less manual materials handling is required. The location of the stockpiles should not interfere with work but they should still be readily available when required. Stored materials should allow at least one metre (or about three feet) of clear space under sprinkler heads.
Stacking cartons and drums on a firm foundation and cross tying them, where necessary, reduces the chance of their movement. Stored materials should not obstruct aisles, stairs, exits, fire equipment, emergency eyewash fountains, emergency showers, or first aid stations. All storage areas should be clearly marked.
Flammable, combustible, toxic and other hazardous materials should be stored in approved containers in designated areas that are appropriate for the different hazards that they pose. Storage of materials should meet all requirements specified in the fire codes and the regulations of environmental and occupational health and safety agencies in your area.

       Handling Suspicious Mail

Why should I be aware of the mail received at the workplace?

In most cases, when discussing suspicious mail, it is mail that may contain a bomb, or a chemical, biological, radioactive or nuclear substance. It is good practice to screen mail you have received for unusual features.

What would suspicious mail look like?

You know what kind of mail and packages you usually get. Look for things that are out of the ordinary. Something may be suspicious if several of these features are present:
  • There is too much postage using many low-value stamps.
  • The return address is missing, foreign and/or indecipherable.
  • The name, title or address is not correct or not spelled correctly. They may display distorted handwriting, or the name and address may be made with homemade labels or cut-and-paste letters.
  • There is too much wrap, binding, tape, or tying material.
  • You can feel wiring, aluminum foil or powder inside and/or protruding from the package.
  • The letter or package feels too heavy. They may have an irregular shape with soft spots or bulges.
  • The letter or package is dirty, oil- or grease-stained or leaking.
  • There is a funny smell or noise or a sloshing sound.
  • Cancellation or post marks may indicate a different location than the return address or that the item was mailed from a foreign country.
  • Letter bombs may feel rigid, or appear uneven or lopsided.
  • Bombs in parcels may be addressed to specific individuals, and could have restrictive notes such as "Personal", "Private", "To be opened only by" or  notes such as "Fragile – Handle with Care", or "Rush – Do not delay".  


What mail should be okay?

There is generally no need to be worried about:
  • Mail and packages you receive from people you know.
  • Mail and packages you receive from businesses you know.
  • Items you have ordered from stores, such as books, food, or clothing.

What do I do if I suspect a bomb?

If you are suspicious that a letter or package may contain a bomb, you may refuse to accept it.
If it is already on your premises:
  • DO NOT OPEN IT.
  • Isolate it.
  • Leave the area immediately.
  • Do not put the item in water, or a confined space such as a desk drawer or filing cabinet.
  • Notify your supervisor.
  • Dial 911.

What do I do if I suspect a harmful chemical or biological substance?

If you are suspicious that a letter or package may contain a harmful chemical or biological substance, you may refuse to accept it.
  • Remain calm.
  • Do not open the letter or package.
  • Cover the letter or package with a plastic sheet or raincoat or if none is available, leave the package where it is.
  • Get everyone out of the room and close all doors and windows.
  • Isolate the area where the package is.
  • Notify your supervisor.
  • Dial 911.
  • Wait in a safe place (another area) that has a telephone until the emergency responders arrive.

Should I worry if I already opened the package?

The contents of a letter or package may cause concern if:
  • You see powder or a liquid.
  • It contains a threatening note.
  • It contains an object that you did not expect to receive or cannot identify.
If you touched a letter or package that possibly contains a harmful substance or got some on your clothes:
  • Remain calm.
  • Leave the letter or package where it is.
  • Wash your hands well.
  • Remove any clothing that has powder or liquid on it and seal it in a plastic bag.
  • Get everyone out of the room and close the door.
  • Wash your hands again or shower with soap and water.
  • Notify your supervisor.
  • Dial the nearest Police station.
  • Wait in a safe place (another area) that has a telephone until the emergency responders arrive.

What happens next?

The police, other emergency workers, and public health authorities will give you advice about what to do next.