ATI LPN
ATI LPN Pharmacology Quiz Questions
Extract:
Question 1 of 5
The nurse needs to monitor a client's blood sugar after administration of insulin regular (Humulin R). When does the nurse expect to assess the client's blood sugar based on the peak action of the medication?
Correct Answer: D
Rationale: Regular insulin (Humulin R) peaks at 2–4 hours, when the risk of hypoglycemia is highest, necessitating blood sugar monitoring. Other time frames correspond to onset (15–30 min) or later duration, not peak effect.
Question 2 of 5
The client asks the nurse which type of diabetes is caused by no insulin secretion by the pancreas. What is the best response by the nurse?
Correct Answer: D
Rationale: Type 1 diabetes is caused by autoimmune destruction of pancreatic beta cells, resulting in no insulin secretion, requiring insulin therapy. Type 2 diabetes involves insulin resistance and relative deficiency, not a complete lack of insulin. The other options misrepresent the pathophysiology of diabetes types.
Question 3 of 5
The patient with tuberculosis is now on isoniazid (INH). Which laboratory test should the nurse monitor?
Correct Answer: A
Rationale: Isoniazid is hepatotoxic, potentially causing liver damage, so monitoring liver function tests (LFTs) is essential to detect early hepatotoxicity. PT/PTT (clotting), BUN (kidney), and CBC (general health) are not primarily affected by INH.
Question 4 of 5
Clients taking metformin (Glucophage) should be monitored for this rare but potentially fatal adverse effect:
Correct Answer: D
Rationale: Lactic acidosis is a rare but serious metformin complication, especially with renal impairment, due to drug accumulation. Respiratory acidosis, hyperlipidemia, and hypertension are not typical metformin side effects.
Question 5 of 5
A nurse is preparing to administer vitamin K 1 mg IM to a newborn. Available is vitamin K injection 1 mg/0.5 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.)
Correct Answer: 0.5
Rationale: Using the formula: Volume (mL) = Dose (mg) ÷ Concentration (mg/mL), and noting concentration is 1 mg/0.5 mL (or 2 mg/mL), for a 1 mg dose, Volume = 1 ÷ 2 = 0.5 mL, which is already to the nearest tenth.