Give Dobutamine 5.5 mcg/kg/min. The drug is available as 750 mg in 500 ml of fluid. The client weighs 220 pounds. Calculate mcg/min, mcg/hr, and ml/hr. (Include the unit of measure for each answer).
The Correct Answer is ["22"]
Dobutamine infusion calculation:
- Client weight: 220 pounds
- Dobutamine dose ordered: 5.5 mcg/kg/min
- Dobutamine concentration: 750 mg in 500 mL
- Conversion factor: 1 mg = 1000 mcg
- 1 kg = 2.2 pounds
Calculations:
- Convert client weight to kg: 220 lbs / 2.2 lbs/kg = 100 kg
- Calculate mcg/min: 5.5 mcg/kg/min × 100 kg = 550 mcg/min
- Calculate mcg/hr: 550 mcg/min × 60 min/hr = 33000 mcg/hr
- Calculate mL/hr: Dobutamine concentration is 750 mg/500 mL, which equals 1500 mcg/mL.
- mL/hr = 33000 mcg/hr / 1500 mcg/mL = 22 mL/hr
Answers:
- mcg/min: 550 mcg/min
- mcg/hr: 33000 mcg/hr
- mL/hr: 22 mL/hr
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
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Correct Answer is B
Explanation
A. Confusion: Not typically associated with iron deficiency anemia.
B. Fatigue. Fatigue is a hallmark symptom due to decreased oxygen-carrying capacity of the blood. Iron is essential for hemoglobin, and without sufficient iron, oxygen delivery to tissues is impaired, leading to fatigue.
C. Pain: Pain is not a typical symptom of iron deficiency anemia.
D. Slurred speech: Neurological symptoms like slurred speech are not typically seen in iron deficiency anemia unless severe.
Correct Answer is C
Explanation
A. Cold intolerance: Incorrect. Cold intolerance is associated with hypothyroidism, not hyperthyroidism.
B. Fatigue and lethargy: Symptoms typically seen in hypothyroidism.
C. Tremors and nervousness Correct Answer. Hyperthyroidism often presents with symptoms such as tremors (especially in the hands) and nervousness due to increased sympathetic activity. Increased metabolism and sympathetic nervous system activity lead to these symptoms.
D. Weight gain: Typically seen in hypothyroidism due to slowed metabolism.
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