A nurse is preparing to administer digoxin 2 mcg/kg/day PO to divide equally every 12 hours for an infant who weighs 7 kg. Available is digoxin elixir 0.05 mg/mL. How many mL should the nurse administer per dose? (Round the answer to the nearest hundredth. Use a leading zero if it applies. Do not use a trailing zero.)
The Correct Answer is ["0.14"]
Step 1: Identify the known values
- Dose ordered = 2 mcg/kg/day
- Frequency = every 12 hours → 2 doses per day
- Weight = 7 kg
- Concentration available = 0.05 mg/mL
Step 2: Calculate total daily dose in mcg
2 mcg × 7 kg = 14 mcg/day
Step 3: Divide daily dose by 2 to get per dose
14 mcg ÷ 2 = 7 mcg per dose
Step 4: Convert mcg to mg
7 mcg = 0.007 mg
Step 5: Use concentration to calculate mL per dose
0.007 mg ÷ 0.05 mg/mL = 0.14 mL
Answer: 0.14 mL
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Staffing practices are unrelated to nursing fatigue is incorrect. Research consistently shows that inadequate staffing contributes to nurse fatigue and burnout. When there are fewer nurses than needed, it can lead to longer shifts, more stress, and exhaustion, negatively affecting both nurse well-being and patient care.
B. Adequate staffing places little demand on the budgeting of nursing units is incorrect. While adequate staffing may require a higher initial budget, the long-term benefits (such as improved patient outcomes and nurse retention) can lead to cost savings. Inadequate staffing can result in more complications, longer hospital stays, and higher turnover rates, which can ultimately increase costs.
C. Adequate staffing helps to promote both patient and nurse satisfaction is correct. Current clinical research supports the idea that adequate staffing directly improves both patient outcomes and nurse satisfaction. When staffing levels are appropriate, nurses are less likely to experience burnout, and patients are more likely to receive safe, quality care, leading to higher satisfaction for both parties.
D. Staffing patterns do not affect hospital infection rate is incorrect. Staffing patterns are directly linked to patient safety and infection rates. Research shows that lower staffing levels can result in higher patient infection rates due to decreased nurse-patient interaction and the inability to provide timely interventions.
Correct Answer is D
Explanation
A. Administer an oral potassium supplement is incorrect. Potassium imbalances can cause muscle weakness and cramps, but the client’s symptoms are more likely related to hypocalcemia rather than hypokalemia. Administering potassium without verifying the actual cause of the symptoms could be inappropriate.
B. Request prescription for a relaxant is incorrect. While muscle spasms can be painful, the first priority is to address the underlying cause of the spasms, which in this case is likely hypocalcemia. A muscle relaxant might not address the root cause and could delay appropriate treatment.
C. Check the pedal pulses is incorrect. While checking pedal pulses is important for assessing circulation, the client's symptoms of severe muscle spasms are more indicative of hypocalcemia rather than a circulation issue. The nurse's priority should be to address the electrolyte imbalance.
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