A nurse is preparing to administer digoxin 12 mcg/kg/day PO to divide equally every 12 hr to a school-age child who weighs 66 lb. Available is digoxin elixir 0.05 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.)
The Correct Answer is ["3.6"]
To calculate the dosage of digoxin for the child, first convert the child's weight from pounds to kilograms, knowing that 1 kilogram equals 2.2 pounds. The child weighs 66 pounds, which is approximately 30 kilograms (66 ÷ 2.2). The prescribed dose is 12 micrograms per kilogram per day, which equals 360 micrograms per day (12 mcg × 30 kg). Since the dose is divided every 12 hours, the child should receive 180 micrograms every 12 hours. The digoxin elixir is available at a concentration of 0.05 mg/mL, which is the same as 50 micrograms per milliliter. To find out how many milliliters to administer per dose, divide the dose in micrograms by the concentration: 180 mcg ÷ 50 mcg/mL equals 3.6 mL.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Promoting maternal-infant bonding is important but is secondary to addressing immediate physical concerns.
B. Maintaining the integrity of the sac is the priority in managing myelomeningocele. The sac should be protected from rupture or infection to prevent damage to the spinal cord and nerves.
C. Providing age-appropriate stimulation is important for development but is not as urgent as protecting the physical integrity of the sac.
D. Educating the parents about the defect is crucial for long-term care but does not take precedence over immediate physical needs.
Correct Answer is ["B","D","E","H"]
Explanation
A. While the child’s oral intake is reduced, it is not as immediately critical as the other findings. However, it should still be monitored and managed.
B. The child’s blood pressure has dropped to 88/48 mm Hg on Day 3, which is significantly lower than the initial value and may indicate hypotension. This could be a sign of worsening condition or dehydration and needs to be reported for further evaluation and intervention.
C. The temperature of 38.1° C (100.6° F) on Day 3 indicates a fever but is lower than the initial admission temperature. It is important but not as critical as the other findings in this scenario.
D. The oxygen saturation has decreased to 88% on room air, which is below the normal range and indicates hypoxemia. This is critical in a patient with pneumonia and cystic fibrosis, and it requires immediate attention to manage respiratory function and oxygenation.
E. The child has passed three large, frothy, foul-smelling stools, which could be indicative of a gastrointestinal complication, possibly related to cystic fibrosis. This change in bowel habits should be reported as it may impact the child’s overall condition and treatment plan.
F. The sputum is thick, yellow, and blood-streaked, which is consistent with the condition but does not require immediate reporting unless there is a significant change in color or consistency.
G. The reported pain level of 4 on a scale of 0 to 10 is moderate but not life-threatening. It should be managed, but it is less urgent compared to other assessment findings.
H. The child is using accessory muscles for respiration and is experiencing dyspnea while at rest, which suggests worsening respiratory distress. This is crucial to report as it reflects the severity of the pneumonia and may need adjustments in the treatment plan.
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