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 A
Explanation
A. Respiratory rate is correct. In acute adrenal insufficiency (also known as adrenal crisis), there is a severe deficiency of cortisol, which can lead to hypotension, shock, and respiratory distress. Assessing the respiratory rate is crucial to identify any signs of respiratory compromise or distress, which can occur in adrenal crisis due to circulatory and metabolic instability.
B. Cranial nerves is incorrect. While cranial nerve assessment is important in neurological evaluations, it is not the priority assessment for acute adrenal insufficiency. Respiratory and circulatory assessments take precedence in this emergency situation.
C. Blood glucose levels is incorrect. While blood glucose levels should be monitored in adrenal crisis (due to potential hypoglycemia), the priority assessment is focused on respiratory function and signs of shock, as these are the most immediate threats to the client's life.
D. Range of motion is incorrect. While it’s important to assess mobility in general nursing care, assessing the range of motion is not a priority in acute adrenal insufficiency, where immediate concerns are more related to respiratory status and hemodynamic stability.
Correct Answer is C
Explanation
A. Stand 1.8 m (6 feet) away from the client is incorrect. For airborne precautions, a nurse should maintain a much greater distance (typically at least 2 meters, or about 6 feet), but the key action is wearing the appropriate protective equipment, such as an N95 respirator.
B. Allow the client to ambulate in the hall is incorrect. Clients on airborne precautions should generally be restricted to their rooms to prevent the spread of infectious particles. If ambulation is necessary, it should be done with appropriate precautions (such as a mask for the client and the staff wearing an N95 respirator).
C. Wear an N95 respirator mask is correct. For airborne precautions, healthcare providers must wear an N95 respirator mask to protect themselves from inhaling airborne pathogens, such as those associated with diseases like tuberculosis or measles.
D. Provide a positive-pressure airflow room is incorrect. Airborne precautions require a negative-pressure room to contain airborne pathogens and prevent their spread to other areas of the facility. A positive-pressure room is typically used for clients who are immunocompromised, to prevent pathogens from entering the room.
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