A client began taking hydrochlorothiazide 1 week ago and is reporting occasional dizziness when standing up quickly from sitting or lying. What is the nurse's best action?
Arrange for the client's potassium levels to be assessed as soon as possible
Teach the client about the blood pressure effects of the medication and relevant safety measures.
Educate the client about the need for bed rest until the body adjusts to the new medication.
Tell the client to withhold the medication until the client can be assessed by the primary health care provider.
The Correct Answer is B
A. While assessing potassium levels is important for clients on diuretics, the immediate concern is the client's dizziness, which indicates a potential issue with blood pressure.
B. Teaching the client about the potential for orthostatic hypotension caused by hydrochlorothiazide and instructing them on safety measures (e.g., standing up slowly) is crucial to prevent falls and address the dizziness.
C. Bed rest is not necessary; the client should be educated about managing dizziness instead.
D. Withholding the medication is not warranted unless directed by a healthcare provider; the focus should be on safety education.
Free Nursing Test Bank
- Free Pharmacology Quiz 1
- Free Medical-Surgical Quiz 2
- Free Fundamentals Quiz 3
- Free Maternal-Newborn Quiz 4
- Free Anatomy and Physiology Quiz 5
- Free Obstetrics and Pediatrics Quiz 6
- Free Fluid and Electrolytes Quiz 7
- Free Community Health Quiz 8
- Free Promoting Health across the Lifespan Quiz 9
- Free Multidimensional Care Quiz 10
View Related questions
Correct Answer is A
Explanation
A. Changing positions slowly is critical for older adults taking beta-adrenergic blockers and diuretics to prevent orthostatic hypotension, which can lead to lightheadedness or dizziness.
B. Reducing fluid intake is not advisable, as thiazide diuretics can lead to dehydration, and maintaining adequate fluid intake is essential for overall health and to avoid excessive urinary output.
C. Identifying and eliminating high-potassium foods is unnecessary unless there is a specific indication of hyperkalemia, particularly since thiazide diuretics do not typically cause potassium retention, and beta-blockers are not potassium-specific.
D. Expecting blood pressure to increase before it decreases is misleading; clients should see a gradual reduction in blood pressure with proper medication adherence, and any sudden increases should be reported.
Correct Answer is D
Explanation
A. While historical context is useful, the development of antimicrobials primarily began in the early 20th century, notably with penicillin discovered by Alexander Fleming in 1928.
B. This statement is incorrect; fluoroquinolones primarily inhibit bacterial DNA synthesis rather than directly affecting the cell wall.
C. Selective toxicity is a principle of antimicrobial action but does not directly explain how a specific antimicrobial works therapeutically.
D. Penicillin specifically interferes with the synthesis of the bacterial cell wall, leading to cell lysis and death of the bacteria, which is a fundamental mechanism of action for this antibiotic.