ATI RN
ATI Pharmacology Test Bank
1. What is the action of Metformin?
- A. Decreasing intestinal glucose absorption
- B. Increasing sensitivity to insulin
- C. Decreasing hepatic glucose production
- D. All of the above
Correct answer: D
Rationale: Metformin exerts its effects by decreasing hepatic glucose production, increasing sensitivity to insulin, and decreasing intestinal glucose absorption. These actions help in lowering blood glucose levels and improving insulin sensitivity in individuals with diabetes.
2. A client has a new prescription for Hydralazine. Which of the following adverse effects should the nurse instruct the client to monitor?
- A. Tachycardia
- B. Hyperglycemia
- C. Hyponatremia
- D. Constipation
Correct answer: A
Rationale: Corrected Rationale: Hydralazine is a vasodilator that can cause reflex tachycardia as an adverse effect. The client should monitor their pulse and report any significant increases, as tachycardia can indicate a severe adverse reaction to the medication. Choice B, Hyperglycemia, is not a common adverse effect of Hydralazine. Choice C, Hyponatremia, and Choice D, Constipation, are also not typically associated with Hydralazine use. Therefore, the correct answer is A: Tachycardia.
3. A nurse is caring for a client who has a new prescription for levothyroxine. Which of the following laboratory values should the nurse monitor to determine the effectiveness of the medication?
- A. Calcium
- B. Sodium
- C. Thyroid-stimulating hormone (TSH)
- D. Magnesium
Correct answer: C
Rationale: The correct answer is C: Thyroid-stimulating hormone (TSH). Monitoring TSH levels is crucial to assess the effectiveness of levothyroxine in clients with hypothyroidism. TSH is produced by the pituitary gland and stimulates the thyroid gland to produce thyroid hormones. In hypothyroidism, where the thyroid gland is underactive, administering levothyroxine helps to normalize thyroid hormone levels. Monitoring TSH levels allows the healthcare provider to adjust the levothyroxine dosage to ensure that thyroid hormone levels are within the therapeutic range. Choices A, B, and D (Calcium, Sodium, and Magnesium) are not directly related to assessing the effectiveness of levothyroxine therapy in hypothyroidism and would not provide relevant information regarding the medication's efficacy.
4. A client has a new prescription for Lisinopril. Which of the following laboratory values should be monitored?
- A. Serum potassium
- B. Serum sodium
- C. Serum calcium
- D. Serum magnesium
Correct answer: A
Rationale: Corrected Rationale: Lisinopril is an ACE inhibitor that can cause hyperkalemia by reducing potassium excretion through the kidneys. Monitoring serum potassium levels is crucial to detect hyperkalemia early and prevent adverse effects such as cardiac arrhythmias. Choices B, C, and D are incorrect because Lisinopril is not known to significantly impact sodium, calcium, or magnesium levels in the same way it affects potassium levels.
5. The nurse is irrigating a client's colostomy when she complains of abdominal cramping after receiving about 100 mL of the irrigating solution. What should the nurse's first response be in this situation?
- A. Stop the flow of solution temporarily.
- B. Reposition the client on to her right side.
- C. Remove the irrigation tube.
- D. Massage the abdomen gently.
Correct answer: A
Rationale: The abdominal cramping that can occur during colostomy irrigation results from stimulation of the colon by the irrigating solution. The nurse's first response should be to temporarily stop the flow of solution to allow the cramping to subside. Repositioning the client to the right side will not alleviate the cramping. Removing the tube will not decrease the cramping and will necessitate reinsertion of the tube when the irrigation is resumed. Massaging the abdomen gently may be soothing to some clients, but it is not the nurse's first priority action.
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