An infant weighing 6 pounds 3 ounces has morphine 0.5 mg IV q 2 hours prn ordered for post op pain. The recommended dosage for a child is 0.1-0.2 mg/kg/dose q2-4 hours prn. Prove mathematically the ordered dose by the physician (mg/kg/dose) and is it safe to give.
The Correct Answer is ["0.1696"]
To calculate the ordered dose by the physician in mg/kg/dose, we need to convert the infant's weight from pounds and ounces to kilograms. One pound is equal to 0.4536 kg and one ounce is equal to 0.02835 kg. Therefore, the infant's weight in kilograms is:
6 x 0.4536 + 3 x 0.02835 = 2.948 kg
The ordered dose by the physician is 0.5 mg IV q 2 hours prn. To find the dose in mg/kg/dose, we divide the dose in mg by the weight in kg:
0.5 / 2.948 = 0.1696 mg/kg/dose
The recommended dosage for a child is 0.1-0.2 mg/kg/dose q2-4 hours prn. The ordered dose by the physician falls within this range, so it is a safe dosage for the infant.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["1.75"]
Explanation
To administer the correct dose of ampicillin IM, the nurse needs to calculate the amount of solution to draw up from the vial.
The vial contains 1 g of ampicillin in 5 mL of solution, which means that each mL has 200 mg of ampicillin.
To get 350 mg of ampicillin, the nurse needs to divide 350 by 200, which gives 1.75.
Therefore, the nurse needs to draw up 1.75 mL of solution for an IM injection.
Correct Answer is A
Explanation
A. “Bring the child to the emergency room immediately.”
This is the most appropriate recommendation given the symptoms described, including the barking cough, elevated temperature, and blueness around the mouth. These signs may indicate respiratory distress, and immediate medical attention is needed.
B. “Bundle the child up and take her out into the cold for a few minutes. Call back if the exposure to the cold air does not provide relief.”
Taking a child out into the cold is not a recommended intervention for respiratory distress. This action may exacerbate the child's breathing difficulties. The symptoms described require urgent evaluation in a healthcare setting.
C. “Take the child into the steam-filled room for an additional 15 minutes. If there is no relief, bring the child to the emergency room.”
While steam may provide temporary relief for mild respiratory symptoms, the presence of blueness around the mouth suggests a more severe condition. Delaying care by waiting for an additional 15 minutes may not be appropriate in this situation.
D. “Put a cool mist humidifier or vaporizer in the room to see if that relieves the cough. Call back if there’s no relief in an hour.”
Using a cool mist humidifier may be helpful for mild respiratory symptoms, but the severity of the symptoms described, especially blueness around the mouth, indicates a need for immediate medical attention. Waiting for an hour could lead to worsening of the child's condition.
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