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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["A","B","E","F"]
Explanation
Given the client’s symptoms (right lower quadrant pain, nausea, fever) and elevated WBC count indicating a possible infection, the provider may prescribe IV antibiotics. This is especially important if there is a concern for appendicitis or another bacterial infection.
B. The client may need to be kept NPO (nil per oral) in preparation for possible surgery or diagnostic imaging to prevent complications such as aspiration if surgery is needed.
C. Promethazine is an antiemetic, but the priority in this case would be addressing the underlying condition (likely appendicitis) rather than just managing symptoms. However, it might be used later for symptomatic relief.
D. Acetaminophen may be used for pain management, but with a suspected surgical condition, addressing the root cause is more critical. Pain management will likely be considered after the primary issue is addressed.
E. With symptoms and lab results suggestive of appendicitis, the client may require surgery. Informed consent is necessary before any surgical procedure.
F. An abdominal ultrasound is commonly used to assess for appendicitis in children and can help confirm the diagnosis by visualizing the appendix and assessing for inflammation.
G. Enemas are not indicated in this case and could be harmful. They are not recommended for abdominal pain with a possible surgical condition like appendicitis.
Correct Answer is D
Explanation
A. The conjunctivae can show signs of cyanosis but is not the most reliable indicator of central cyanosis.
B. Ear lobes may show peripheral cyanosis but are not reliable for central cyanosis.
C. The soles of the feet are not typically assessed for cyanosis in this context.
D. The oral mucosa is the most reliable indicator of central cyanosis, as it reflects the oxygenation status of the blood more accurately.
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