A child weighing 45 pounds is prescribed phenytoin for a ...

[oliviahorn72]

A child weighing 45 pounds is prescribed phenytoin for a dysrhythmia. The nurse calculates the maximum dose for this child, if the dose is not to exceed 15 mg/kg/dose.
 
  a. 300 mg/dose c. 245 mg/dose
  b. 308 mg/dose d. 200 mg/dose

Question 2

When teaching a client about home administration of digoxin, the nurse realizes that further instruction is needed when the client states:
 
  a. I should not take the digoxin with an antacid.
  b. I can still take my echinacea to boost my immune system.
  c. My family should know the symptoms of digoxin toxicity.
  d. I can still take my St. John's wort for anxiety.

[Ksh22]

Answer to Question 1

ANS: B

Feedback
A Incorrect: This is not the appropriate dosage.
B Correct: 45 pounds divided by 2.2 = 20.5 x 15 = 307.5 mg/dose
C Incorrect: This is not the appropriate dosage.
D Incorrect: This is not the appropriate dosage.

Answer to Question 2

ANS: D

Feedback
A Incorrect: This statement demonstrates client understanding.
B Incorrect: This statement demonstrates client understanding.
C Incorrect: This statement demonstrates client understanding.
D Correct: St. John's wort decreases digoxin levels by increasing digoxin renal excretion.