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Author Question: Choose the statement that accurately reflects the dose of a drug needed per kilogram of body weight ... (Read 115 times)

scienceeasy

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on: Jul 23, 2018
Choose the statement that accurately reflects the dose of a drug needed per kilogram of body weight to reach a desired serum concentration level in a child.
 
  a. The dose should be smaller than that needed by an adult.
  b. The dose should be the same as that needed by an adult.
  c. The dose should be larger than that needed by an adult.
  d. The amount of the dose is uncertain and cannot be determined.

Question 2

Which one of the following actions can minimize the risk of toxicity in neonates and infants, given the lower binding capacity of their albumin for penicillin?
 
  a. Decreasing the amount of drug given
  b. Increasing the amount of drug given
  c. Shortening the time interval between doses
  d. Making the time interval between doses irregular


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Kjones0604

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Reply #1 on: Jul 23, 2018
Answer to Question 1

ANS: C
Drug distribution and equilibration rates are faster in children compared with adults. Therefore, a larger average dose per kg of body weight is needed to reach desired serum concentration levels.

Answer to Question 2

ANS: A
The albumin in neonates and infants has a lower binding capacity for certain drugs (e.g., pheny-toin, penicillin) compared with the binding capacity of mature albumin. Therefore more unbound drug is free to circulate and act. Thus it is possible that free drug levels will be high enough to produce adverse or toxic effects. To minimize the possibility of toxicity and to compensate for the shorter duration of drug action, it is often necessary to decrease the amount of the drug given and/or lengthen the time between doses.


scienceeasy

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Reply 2 on: Jul 23, 2018
Gracias!

AISCAMPING

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Reply 3 on: Yesterday
:D TYSM

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