The physician orders erythromycin 1 g in 100 mL of D5W to infuse in 30 minutes. Calculate the flow rate in milliliters per hour. _____________ (LABEL CORRECTLY TO RECEIVE CREDIT: DO NOT USE SPACES IN YOUR ANSWER, I.e. 33mL/hr)
The Correct Answer is ["200"]
Total volume to be infused = 100 mL.
Infusion time in minutes = 30 minutes.
- Convert the infusion time from minutes to hours.
Infusion time in hours = 30 minutes / 60 minutes/hour
= 0.5 hours.
- Calculate the flow rate in milliliters per hour (mL/hr).
Flow rate (mL/hr) = Total volume (mL) / Infusion time (hr)
= 100 mL / 0.5 hr
= 200 mL/hr.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Hypoparathyroidism: Hypoparathyroidism presents with low calcium levels and symptoms like muscle cramps, tetany, or numbness around the mouth and in the extremities. It is not associated with flushed skin, bulging eyes, or irritability.
B. Cushing's Disease: Cushing's disease is caused by excessive levels of cortisol. Symptoms include weight gain, moon face, buffalo hump, and hypertension. The findings described, such as flushed skin, bulging eyes, and irritability, are not characteristic of Cushing's disease.
C. Hypothyroidism: Hypothyroidism is associated with symptoms such as fatigue, weight gain, cold intolerance, dry skin, and constipation, not flushed skin, bulging eyes, or irritability. The symptoms described are not typical of an underactive thyroid.
D. Hyperthyroidism: Hyperthyroidism (often associated with Graves' disease) presents with flushed skin, irritability, palpitations, bulging eyes (exophthalmos), and perspiration due to the overproduction of thyroid hormones.
Correct Answer is C
Explanation
A. With food: Levothyroxine should not be taken with food because it can interfere with the absorption of the medication. Food, especially high-fiber meals, can reduce the effectiveness of levothyroxine.
B. With milk: Milk contains calcium, which is known to interfere with the absorption of levothyroxine. Taking the medication with milk would reduce its effectiveness and could necessitate a higher dose, or lead to fluctuations in thyroid hormone levels.
C. On an empty stomach: Levothyroxineshould be taken on an empty stomach, typically 30 to 60 minutes beforeeating or drinking anything, except water, to ensure optimal absorption and effectiveness.
D. With fruit juice: Fruit juice is not ideal for taking levothyroxine, as it can also affect absorption, especially grapefruit juice. It is best to take the medication with water only.
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