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Ask the Pharmacist
by Ron & Marla Chapleau

January 8, 2017
www.saugeentimes.com
www.kincardinetimes.com

Health

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Q) My son has some kind of virus and I’m worried that he might be getting dehydrated from the diarrhea. He hates the taste of Pedialyte and Gastrolyte. Is there anything else I can give him to prevent this?

A) Every year in Canada there are about 7 000 hospitalizations, 27 000 ER visits and some 56,000 physician visits mainly as a result of dehydration just from the rotavirus alone.

When you add all the other possible illnesses and other causes that can produce dehydration in our children, one can clearly see that this is a major source of ill health in our kids (one of the most common causes of mortality and sickness) and a significant drag upon our economy (the treatment of such is estimated to cost our health care system 17 million a year at a minimum).

This is regrettable as many cases of dehydration can be prevented long before they become serious by being cognizant of its causes and symptoms and initiating preventative measures at home before the situation turns into an emergency.

Dehydration is simply an excessive loss of body water. This change in the amount of water within the body can lead to a host of other problems such as changes in the levels of a number of electrolytes (most notably potassium and sodium) as well as the potential for the body to become too acidic, a condition known as metabolic acidosis. If left untreated for too long it can lead to permanent damage to assorted organs (most commonly the kidney with the brain, heart and skin also being at substantial risk) and be potentially fatal.

Kids can become dehydrated far faster than adults due to their rapid turnover of body fluids and the younger the child the quicker the onset and the greater the risks.

 Dehydration is usually caused by prolonged diarrhea or vomiting but can also be induced by being exposed to hot temperatures for too long; vigorous exercise; certain medications (mainly water pills/ diuretics); and some medical conditions such as kidney disease.

The key to dehydration treatment is to prevent it in the first place but rehydrating your child can be challenging. Rehydration is also not nearly as simple as giving your child more fluids to drink since plain water without the proper amounts of electrolytes can cause sodium and potassium levels to plummet whereas juice contains large amounts of sugar which can significantly worsen diarrhea.

As well, over-hydration can be as serious as dehydration and require urgent medical attention. In general, the younger the child, the more careful the rehydration process should be. So in order to prevent dehydration, one must first be aware of the signs that it may be developing.

The very initial symptoms not surprisingly are thirst and a decreased urine output which will become darker in colour. Note, if your child is exhibiting these symptoms, they are already somewhat dehydrated. Later developing symptoms include a mouth that feels sticky to the touch, sunken eyes, irritability and decreased tears.

Symptoms that indicate that significant dehydration has already occurred include your child appearing to be drowsy, limp or cold; a mouth that feels dry; eyes that are very sunken and an inability to produce tears.

 

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Another way of assessing the level of dehydration is through body weight. As soon as your child exhibits vomiting or diarrhea it is a great idea to get an exact current weight. A loss weight of 5% or less is a sign of mild dehydration, a loss of 5-10% of moderate dehydration and it’s determined to be severe if the loss is any greater than 10%.

There are a number of different rating systems that can help indicate when it is time to seek immediate medical attention. Calling Telehealth Ontario, your local pharmacy or perhaps your physician’s office can help guide your decision.

There are a number of rehydration solutions available commercially such as the two mentioned in the article above that provide the proper amounts of electrolytes, sugar per volume of liquid. They are all excellent choices and are considered the so-called first line in prevention.

However, for some parents, they may not be suitable due to their taste (often not great although the “freezie pops” version is often preferred by many youngsters), price (they can cost over $8 a litre) and lack of stability (once mixed or opened they go bad within days). Recent evidence from emergency rooms indicates that half strength apple juice (i.e. mixed apple juice mixed half and half with water) seems to work as well as the commercial products and doesn’t appear to worsen diarrhea.

 After choosing a rehydration product, the next issue to address is timing. Rehydration should start as soon as vomiting or diarrhea occurs. Start with 1 tsp (5ml) every 5 minutes, then increase as tolerated. For kids who are already showing the initial signs of mild dehydration, try 60-120ml of fluid after each bout of diarrhea or vomiting for kids who weigh less than 10kg (22 pounds) or 120-240ml for heavier kids.

Of course some children should be referred to the ER regardless of hydration state, such as any child who is ill that is less than 6 months of age or 8kg, or those that are older but are spiking a fever greater than 39oC.

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For more information about this or any other health related questions, contact the pharmacists at Gordon Pharmasave, Your Health and Wellness Destination in Port Elgin and Kincardine.


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