ATI LPN
PN Pharmacology 2023 Questions
Extract:
Question 1 of 5
A nurse is reinforcing discharge teaching with a client who has a new diagnosis of type 2 diabetes mellitus and a prescription for exenatide. Which of the following instructions should the nurse include in the teaching?
Correct Answer: B
Rationale: The correct answer is B: Inject the medication into the subcutaneous tissue of your abdomen. Exenatide is a medication used to treat type 2 diabetes and is administered by subcutaneous injection. Injecting it into the abdomen allows for better absorption. It is important for the nurse to instruct the client on the correct administration technique to ensure the medication is effective.
Incorrect choices:
A: Contact the provider if you experience unexplained muscle pain - Although monitoring for side effects is important, muscle pain is not a common side effect of exenatide.
C: Take the medication at bedtime - Exenatide is typically taken before meals, not at bedtime.
D: Discard excess medication after 60 days - Exenatide must be refrigerated and has a shorter shelf life once opened, typically 30 days, not 60.
Question 2 of 5
A nurse is caring for a client who has been taking epoetin alfa for 3 months. Which of the following laboratory tests should the nurse monitor to determine the effectiveness of the medication?
Correct Answer: A
Rationale: The correct answer is A: Hgb. Epoetin alfa is a medication used to treat anemia by stimulating red blood cell production. Monitoring the client's hemoglobin (Hgb) levels is crucial to assess the effectiveness of the medication in increasing red blood cell count. Hemoglobin reflects the oxygen-carrying capacity of the blood and directly correlates with red blood cell levels. Troponin (
B), Thyroxine (T4) (
C), and Aspartate aminotransferase (AST) (
D) are not relevant in monitoring the effectiveness of epoetin alfa therapy as they are related to cardiac function, thyroid function, and liver function, respectively.
Question 3 of 5
A nurse is preparing to administer gentamicin to a child who weighs 44 lb. The provider prescribes 6 mg/kg/day IV to be administered in three equal doses. Available is gentamicin 40 mg/mL. How many mL should the nurse administer with each dose? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)
Correct Answer: 1 mL
Rationale: The correct answer is 1 mL.
To calculate the dose for each administration, first convert the child's weight from pounds to kilograms (44 lb = 20 kg). The total daily dose is 6 mg/kg/day, so for a 20 kg child, the total daily dose is 120 mg (6 mg/kg/day x 20 kg). Since it is to be given in three equal doses, each dose would be 40 mg (120 mg total dose ÷ 3 doses). Since the available concentration is 40 mg/mL, the nurse would administer 1 mL for each dose (40 mg ÷ 40 mg/mL = 1 mL).
Therefore, the correct answer is 1 mL.
Incorrect answers:
-
Choice B: This is incorrect as it does not follow the correct calculation method.
-
Choice C: This is incorrect as it does not consider the weight of the child and the total daily dose required.
-
Choice D: This is incorrect as it does not
Question 4 of 5
A nurse is caring for a client who has Graves' disease and is to start therapy with propylthiouracil. The nurse should expect which of the following outcomes?
Correct Answer: A
Rationale: The correct answer is A: Decreased heart rate. Propylthiouracil is an antithyroid medication used to treat hyperthyroidism in conditions like Graves' disease. It works by inhibiting the production of thyroid hormones. Since hyperthyroidism can cause an increased heart rate due to the excess thyroid hormones, the expected outcome of propylthiouracil therapy is a decreased heart rate as it helps normalize thyroid hormone levels. The other choices are incorrect because propylthiouracil does not directly affect WBC count (
B), Hgb levels (
C), or blood pressure (
D) in the context of treating hyperthyroidism.
Question 5 of 5
A nurse is collecting data from a client who is taking sumatriptan. Which of the following reports indicates a therapeutic response to the medication?
Correct Answer: D
Rationale: The correct answer is D: Absence of headache. Sumatriptan is a medication used to treat migraines by constricting blood vessels in the brain. A therapeutic response to sumatriptan would be the absence of a headache, as the medication is intended to relieve migraine symptoms. Increased bone mass (
A), relief of chest pain (
B), and improved mood (
C) are not expected therapeutic responses to sumatriptan. These symptoms are not typically associated with the mechanism of action or indications for sumatriptan use.
Therefore, the absence of a headache is the most appropriate indicator of a therapeutic response to sumatriptan in this scenario.