Which number should be multiplied by inches in order to convert a patient's height measurement from inches to centimeters?
3.1
2.54
0 2.25
2.75
The Correct Answer is B
This number should be multiplied by inches in order to convert a patient's height measurement from inches to centimeters, because one inch is equal to 2.54 centimeters. To convert inches to centimeters, the formula is:
centimeters = inches × 2.54
For example, if a patient's height is 60 inches, then the height in centimeters is:
centimeters = 60 × 2.54
centimeters = 152.4
Therefore, the patient's height is 152.4 centimeters.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
This answer is correct because BSA is the most accurate method for calculating the child's dose from the adult dose¹². BSA takes into account the child's weight and height, and reflects the physiological function and organ growth of the child beter than weight alone¹. BSA can be calculated using a nomogram or a formula based on the child's weight and height¹. The child's dose can then be calculated by multiplying the adult dose by the ratio of the child's BSA to the average adult BSA (1.73 m2)¹. For example:
Child dose by BSA = (mg/day) = Adult Dose in mg/day x BSA in m2 / 1.73
OR
Child dose by BSA = (mg/day) = Adult Dose in mg/m2 x BSA in m2
The other options are not correct because they are not accurate methods for calculating the child's dose from the adult dose. Actual body weight and ideal body weight may not account for individual variations in pharmacokinetics, pharmacodynamics, or clinical response. Actual body height is not a reliable indicator of drug dosage, as it does not reflect the body mass or organ function of the child.
Correct Answer is D
Explanation
The nurse should administer 4 mL to this patient.
This answer is correct because it is based on a simple ratio and proportion calculation. The nurse can set up a proportion as follows:
2 mg / 1 mL = 8 mg / x mL
Cross-multiplying and solving for x gives:
x = 4 mL
Therefore, the nurse should administer 4 mL of ondansetron to deliver 8 mg of the medication to the patient.
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