a nurse is preparing to administer vancomycin 1 g by intermittent iv bolus available is vancomycin 1 g in 100 ml of dextrose 5 in water d5w to infuse

ATI RN

ATI Pharmacology Proctored Exam 2023

1. A healthcare professional is preparing to administer vancomycin 1 g by intermittent IV bolus. Available is vancomycin 1 g in 100 mL of dextrose 5% in water (D5W) to infuse over 45 min. The drop factor of the manual IV tubing is 10 gtt/mL. How many gtt/min should the healthcare professional adjust the manual IV infusion to deliver?

A. 22 gtt/min
B. 24 gtt/min
C. 20 gtt/min
D. 18 gtt/min

Correct answer: A

Rationale: To calculate the flow rate, use the formula: (Volume in mL x Drop factor) / Time in minutes = Flow rate in gtt/min. In this case, (100 mL x 10 gtt/mL) / 45 min = 22 gtt/min. Thus, the healthcare professional should adjust the manual IV infusion to deliver 22 gtt/min. Choice B, 24 gtt/min, is incorrect because it miscalculates the flow rate. Choices C and D, 20 gtt/min and 18 gtt/min, are also incorrect as they do not accurately calculate the flow rate based on the given information.

2. Potassium-sparing diuretics primarily affect which part of the kidney?

A. Proximal convoluted tubule
B. Loop of Henle
C. Collecting duct
D. Distal convoluted tubule

Correct answer: D

Rationale: Potassium-sparing diuretics exert their primary effects on the distal convoluted tubule in the kidney. By acting on this specific part of the nephron, these diuretics promote sodium excretion while sparing potassium, thus helping to maintain potassium levels in the body. This mechanism differs from other diuretics that may cause potassium loss as a side effect. Understanding the site of action of potassium-sparing diuretics is crucial in clinical practice for managing conditions like hypertension and edema where diuresis is necessary without the risk of hypokalemia.

3. A client has a new diagnosis of Fibromyalgia. Which of the following medications should the nurse anticipate being prescribed for this client?

A. Colchicine
B. Hydroxychloroquine
C. Auranofin
D. Duloxetine

Correct answer: D

Rationale: The correct answer is D, Duloxetine. Duloxetine is a serotonin-norepinephrine reuptake inhibitor commonly used to manage fibromyalgia. It helps in reducing pain and improving mood in individuals with this condition. Colchicine (Choice A) is primarily used to treat gout, while Hydroxychloroquine (Choice B) and Auranofin (Choice C) are medications used to manage conditions like rheumatoid arthritis and lupus, not fibromyalgia.

4. Which of the following is not a side effect of loop diuretics?

A. Alkalosis
B. Nausea
C. Hypotension
D. Potassium deficits

Correct answer: B

Rationale: Nausea is not commonly associated with loop diuretics. Loop diuretics are known to cause electrolyte imbalances such as potassium deficits, metabolic alkalosis, and hypotension due to excessive fluid loss. Nausea is not a typical side effect of loop diuretics.

5. What is the classification for the drug valproate?

A. Anti-diabetic
B. Anti-convulsant
C. Anti-ulcer agent
D. Anti-hypertensive

Correct answer: B

Rationale: Valproate is classified as an anticonvulsant. It is commonly used to treat epilepsy and bipolar disorder by stabilizing electrical activity in the brain. Therefore, the correct classification for valproate is as an anticonvulsant. Options A, C, and D are incorrect because valproate is not used to treat diabetes, ulcers, or hypertension.