A nurse is preparing to administer a dexamethasone 1.5 mg/kg/day PO to divide equally every 6 hr to a preschool-age child who weighs 22 lb. Available is dexamethasone oral solution 1 mg/mL. How many mL should the nurse administer per dose? (Round the answer to the nearest tenth.
Use a leading zero if it applies. Do not use a trailing zero.)
Step 1: lb ÷ (2.2 lb/kg) = 10 kg
Step 2:.5 mg/kg/day × 10 kg = 15 mg/day
Step 3: mg/day ÷ 4 doses/day = 3.75 mg/dose
Step 4:.75 mg ÷ 1 mg/mL = 3.75 mL per dose
The calculated answer is 3.8 mL (rounded to the nearest tenth).
Correct Answer : A,B,C,D,E
Step 1: lb ÷ (2.2 lb/kg) = 10 kg
Step 2:.5 mg/kg/day × 10 kg = 15 mg/day
Step 3: mg/day ÷ 4 doses/day = 3.75 mg/dose
Step 4:.75 mg ÷ 1 mg/mL = 3.75 mL per dose
The calculated answer is 3.8 mL (rounded to the nearest tenth)
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Correct Answer is B
Explanation
Choice A rationale
The lap belt fitting snugly over the child's abdomen increases the risk of abdominal injury during a crash.
Choice B rationale
The lap belt fitting low across the child's hips distributes force over stronger bony structures, reducing injury risk.
Choice C rationale
Placing a child in the front seat with a shoulder-only automatic belt does not provide proper restraint and increases injury risk.
Choice D rationale
The shoulder strap crossing just below the child's chin indicates improper fit, posing a risk to the neck in a crash.
Correct Answer is C
Explanation
Choice A rationale
A properly fastened harness and securely anchored car seat are essential for infant safety. This statement indicates correct practice and does not require further teaching.
Choice B rationale
Using an infant model car seat that is securely anchored is appropriate for a 6-month-old infant. This statement is correct and does not indicate a need for further teaching.
Choice C rationale
A front-facing car seat is inappropriate for a 6-month-old infant. Infants should ride in a rear-facing car seat until at least the age of 2 or until they reach the highest weight or height allowed by the car seat manufacturer. This statement indicates a need for further teaching.
Choice D rationale
A rear-facing car seat in the back passenger seat is the safest position for a 6-month-old infant. This statement is correct and does not indicate a need for further teaching.