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Stay healthy during heat wave Print E-mail
Written by Bill Tipple   
Thursday, 17 July 2008

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Steve Horstmeyer
The Dog Days of Summer are here.

Staff Meteorologist Steve Horstmeyer is forecasting high temperatures in the low 90s today, tomorrow, and Saturday.

This extreme heat can be very dangerous and we have some tips for you and your pets.

If possible, stay indoors in an air-conditioned or properly ventilated room.

If you have to be outside, make sure to drink plenty of fluids and to wear light, loose-fitting clothing.

The Red Cross has put together a list of reminders to consider:

Warm weather means activities and fun under the sun! Whether you love putting on shorts and feeling the warm outdoors, or find it hot and sticky, everyone must be careful not to let a heat-related illness spoil the day.

Normally, the body has ways of keeping itself cool, by letting heat escape through the skin, and by evaporating sweat (perspiration). If the body does not cool properly or does not cool enough, the victim may suffer a heat-related illness. Anyone can be susceptible although the very young and very old are at greater risk. Heat-related illnesses can become serious or even deadly if unattended.

Preventing Heat-Related Illness

  • Dress for the heat. Wear lightweight, light-colored clothing. Light colors will reflect away some of the sun's energy. It is also a good idea to wear hats or to use an umbrella.
  • Drink water. Carry water or juice with you and drink continuously even if you do not feel thirsty. Avoid alcohol and caffeine, which dehydrate the body.
  • Eat small meals and eat more often. Avoid foods that are high in protein which increase metabolic heat.
  • Avoid using salt tablets unless directed to do so by a physician.
  • Slow down. Avoid strenuous activity. If you must do strenuous activity, do it during the coolest part of the day, which is usually in the morning between 4:00 a.m. and 7:00 a.m.
  • Stay indoors when possible.
  • Take regular breaks when engaged in physical activity on warm days. Take time out to find a cool place. If you recognize that you, or someone else, is showing the signals of a heat-related illness, stop activity and find a cool place. Remember, have fun, but stay cool!

Know What These Heat-Related Terms Mean

  • Heat Wave: More than 48 hours of high heat (90oF or higher) and high humidity (80 percent relative humidity or higher) are expected.
  • Heat Index: A number in degrees Fahrenheit that tells how hot it really feels with the heat and humidity. Exposure to full sunshine can increase the heat index by 15o F.
  • Heat cramps: Heat cramps are muscular pains and spasms due to heavy exertion. They usually involve the abdominal muscles or the legs. It is generally thought that the loss of water and salt from heavy sweating causes the cramps.
  • Heat Exhaustion: Heat exhaustion is less dangerous than heat stroke. It typically occurs when people exercise heavily or work in a warm, humid place where body fluids are lost through heavy sweating. Fluid loss causes blood flow to decrease in the vital organs, resulting in a form of shock. With heat exhaustion, sweat does not evaporate as it should, possibly because of high humidity or too many layers of clothing. As a result, the body is not cooled properly. Signals include cool, moist, pale, flushed or red skin; heavy sweating; headache; nausea or vomiting; dizziness; and exhaustion. Body temperature will be near normal.
  • Heat Stroke: Also known as sunstroke, heat stroke is life-threatening. The victim's temperature control system, which produces sweating to cool the body, stops working. The body temperature can rise so high that brain damage and death may result if the body is not cooled quickly. Signals include hot, red and dry skin; changes in consciousness; rapid, weak pulse; and rapid, shallow breathing. Body temperature can be very high--sometimes as high as 105oF.

Stages of Heat-Related Illness
Heat-related illness usually comes in stages. The signal of the first stage is heat cramps in muscles. These cramps can be very painful. If you are caring for a person who has heat cramps, have him or her stop activity and rest. If the person is fully awake and alert, have him or her drink small amounts of cool water or a commercial sports drink. Gently stretch the cramped muscle and hold the stretch for about 20 seconds, then gently massage the muscle. Repeat these steps if necessary. If the victim has no other signals of heat-related illness, the person may resume activity after the cramps stop.

The signals of the next, more serious stage of a heat-related illness (often called heat exhaustion) include--

  • Cool, moist, pale skin (the skin may be red right after physical activity).
  • Headache.
  • Dizziness and weakness or exhaustion.
  • Nausea.
  • The skin may or may not feel hot.

The signals of the late stage of a heat-related illness (often called heat stroke) include--

  • Vomiting.
  • Decreased alertness level or complete loss of consciousness.
  • High body temperature (sometimes as high as 105oF).
  • Skin may still be moist or the victim may stop sweating and the skin may be red, hot and dry.
  • Rapid, weak pulse.
  • Rapid, shallow breathing.

This late stage of a heat-related illness is life threatening. Call 9-1-1 or the local emergency number.

General Care for Heat Emergencies

  1. Cool the Body
  2. Give Fluids
  3. Minimize Shock

For heat cramps or heat exhaustion: Get the person to a cooler place and have him or her rest in a comfortable position. If the person is fully awake and alert, give a half glass of cool water every 15 minutes. Do not let him or her drink too quickly. Do not give liquids with alcohol or caffeine in them, as they can make conditions worse. Remove or loosen tight clothing and apply cool, wet cloths such as towels or wet sheets. Call 9-1-1 or the local emergency number if the person refuses water, vomits or loses consciousness.

For heat stroke: Heat stroke is a life-threatening situation! Help is needed fast. Call 9-1-1 or your local EMS number. Move the person to a cooler place. Quickly cool the body. Wrap wet sheets around the body and fan it. If you have ice packs or cold packs, wrap them in a cloth and place them on each of the victim's wrists and ankles, in the armpits and on the neck to cool the large blood vessels. (Do not use rubbing alcohol because it closes the skin's pores and prevents heat loss.) Watch for signals of breathing problems and make sure the airway is clear. Keep the person lying down.

Tips for your pets in extreme heat:

1. Keep your emergency information with you at all times. When an emergency situation happens, it’s not the time to start frantically searching for your veterinarian’s phone number, or the address of the nearest emergency clinic. Keep important numbers and medical information for your pet up to date and in your wallet or by the phone at all times.

2. Get to know your pet so that you can recognize an emergency. Learn to take your pet’s pulse, count resting breaths and pants when exercising, and ask your veterinarian how to take your pet’s temperature. Knowing what is normal for your pet will help you recognize an emergency soon enough to take action to minimize danger. Normal temperatures on cats and dogs are around 101 degrees. Anything over 103 is an emergency.

3. Never leave an animal in a parked car. Even when it’s only 80 degrees outside, the inside of a car can heat up to 120 degrees or more in just minutes. And, leaving the windows partially rolled down won’t do the trick. Even if you plan to be in the store for “just a sec,” your pet is at risk of a heat stroke.

4. Keep animals out of direct sunlight during the heat of the day, roughly 10 am to 6 pm. Dogs can only regulate their body temperature by panting and by a tiny amount of evaporation of sweat through the pads of their feet.  When overheated, heatstroke can occur and lead to brain damage or death. Older, younger, overweight, and snub-nosed breeds such as bulldogs, pugs, shih tzus, etc. can have an especially difficult time with the heat. Also, long-haired breeds may need a summer trim to keep cool. Just remember not to shave the hair too close, creating a risk of sunburn and skin irritation. We humans can pull on a pair of shorts and a tank top, while our dogs or cats are still wearing a full set of furry “coveralls.”  A good rule of thumb is, if you’re uncomfortable, your pet is uncomfortable. 

5. Know the signs of heat stroke. Symptoms of heat stroke in dogs include excessive panting, drooling, rapid pulse and fever. Immediately run cool (not ice cold) water over the animal and wrap with cool towels before transporting your pet to the veterinarian.  Try offering your pet ice cubes to lick to begin to re-hydrate. Panting in cats is not normal, and if it lasts more than a few minutes, can be a sign of distress. See number 9, “kitty quirks” for more information on cats and heat stroke.

6. Prevent sunburn. Animals can get sunburned too, especially short-haired dogs, or dogs and cats with pink skin and white hair. Limit your pet’s exposure when the sun is unusually strong, and ask your veterinarian about an appropriate brand of sun block such as a non-irritating zinc oxide, that can be applied to his or her ears and nose 30 minutes before going outside.

7. Always make sure animals have access to fresh water and shade. Try spraying down favorite shaded areas a few times during the day to create an outdoor “evaporative cooling system.” For outdoor dogs, try filling a kiddie pool with water and leaving it in the shade. Just be sure to change the water often to make sure you don’t inadvertently raise a new batch of mosquitoes.

8. Avoid strenuous exercise with your dog on extremely hot days, and do not exercise during the intense, mid-day heat. In hot climates, veterinarians recommend limiting activity to the early morning or late evening, about an hour after the sun has gone down. Be sure to bring along water, make frequent stops to allow your dog to rest and hydrate, and keep activity to 20 minutes or less. Remember that your dogs are eager to please and will keep going until you tell them to stop.

9. Test the heat radiating from the sidewalk or street on your own two feet. These hard surfaces absorb and hold heat. If it’s too hot for you to stand on with your bare feet, it will be too hot for the sensitive pads of your pet’s feet as well. And, while it’s never a good idea for a pet to ride in the back of an open pickup truck, the same principle applies. Place your hand against the bed of the pickup truck. If the metal surface is too hot for your hand, it’s too hot for your animals.

10. Understand kitty quirks. Cats exhibit many of the same symptoms as dogs when stressed by the heat. Early signs of heat stroke can be panting that lasts more than a few minutes, anxiety and pacing, increased heartbeat, respiratory distress or hyperventilation, lethargy, and an increased body temperature. And, oddly enough, cats affected by heat may actually drink less when they should be drinking more. Add ice cubes to their water bowl, or encourage kitty to drink by dabbing a little water at the corner of his or her mouth.

 
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