the client is receiving vancomycin and the nurse plans to draw blood for a peak and trough to determine the best determination of these levels
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Pharmacology HESI 55 Questions 2023

1. The client is receiving vancomycin, and the nurse plans to draw blood for a peak and trough to determine... the best timing for these levels?

Correct answer: B

Rationale: To accurately determine peak and trough levels of vancomycin, blood should be drawn two hours after the completion of the IV dose and 30 minutes before the next dose. This timing allows for appropriate assessment of the drug levels in the body, ensuring accurate monitoring of therapeutic and toxic concentrations. Choice A is incorrect as drawing blood midway through administration does not provide an accurate peak level. Choice C is incorrect as drawing blood one hour before the next dose does not represent the trough level. Choice D is incorrect because drawing blood immediately after completion of the IV dose does not allow enough time for the drug to reach peak levels.

2. The practical nurse administered 15 units of NPH insulin subcutaneously to a client before they consumed their breakfast at 7:30 AM. At what time is the client at an increased risk for a hypoglycemic reaction?

Correct answer: B

Rationale: NPH insulin, an intermediate-acting type, peaks approximately 8 to 12 hours after subcutaneous administration. Considering this, the client is most likely to experience a hypoglycemic reaction between 3:30 and 7:30 PM, making option B the correct answer. Choices A, C, and D are incorrect because they fall outside the peak time for a hypoglycemic reaction after administering NPH insulin.

3. A client with a diagnosis of generalized anxiety disorder is prescribed fluvoxamine. The nurse should instruct the client that this medication may have which potential side effect?

Correct answer: A

Rationale: The correct answer is A: Drowsiness. Fluvoxamine is known to cause drowsiness as a potential side effect. Patients should be advised to avoid activities like driving that require alertness until they understand how the medication affects them. Dry mouth, insomnia, and headache are potential side effects of other medications used for anxiety disorders but are not typically associated with fluvoxamine.

4. A client with a history of stroke is prescribed clopidogrel. The nurse should monitor the client for which potential side effect?

Correct answer: A

Rationale: Clopidogrel is an antiplatelet medication that works to prevent blood clots, but it can also increase the risk of bleeding. Therefore, the nurse should monitor the client for signs of bleeding, such as easy bruising, prolonged bleeding from cuts, blood in urine or stool, or unusual bleeding from the gums. Prompt identification and management of bleeding are crucial to prevent complications. Choices B, C, and D are incorrect because while bruising and other symptoms can occur as a result of bleeding, they are not the primary side effect to monitor for with clopidogrel. Nausea and headache are less commonly associated with clopidogrel use compared to bleeding.

5. A client diagnosed with angina has been prescribed nitrate isosorbide dinitrate. Which instruction should the practical nurse reinforce in this client's teaching?

Correct answer: B

Rationale: The correct instruction that the practical nurse should reinforce with a client prescribed nitrate isosorbide dinitrate is to avoid getting up quickly and to rise slowly. Nitrates can cause orthostatic hypotension, a sudden drop in blood pressure when changing positions. By rising slowly, the client can prevent the occurrence of orthostatic hypotension and its associated symptoms. Choices A, C, and D are incorrect because discontinuing the medication without consulting a healthcare provider can be dangerous, taking the medication with or without food does not impact its effectiveness, and increasing potassium intake is not directly related to the use of nitrate isosorbide dinitrate.

Similar Questions

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When a client with a history of deep vein thrombosis is prescribed fondaparinux, the nurse should monitor for which potential adverse effect?
A client with a diagnosis of schizophrenia is prescribed quetiapine. The nurse should monitor the client for which potential side effect?
A client with angina pectoris has been prescribed nitroglycerin tablets prn for chest pain. Which statement by the client causes the practical nurse (PN) to clarify instructions for this client?
A postoperative client has a prescription for ketorolac 30mg IV q6h. Which response demonstrates that therapeutic levels of the medication have been achieved?

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