A nurse is caring for a client who has a prescription for hydrochlorothiazide for the initial treatment of hypertension. Which of the following should the nurse recognize as the action of this medication?
Hydrochlorothiazide prevents angiotensin II from binding with receptor sites.
Hydrochlorothiazide decreases the reabsorption of sodium and water in the distal renal tubule.
Hydrochlorothiazide blocks stimulation of beta receptors in the sympathetic nervous system.
Hydrochlorothiazide promotes the movement of extravascular fluids into the vascular compartment.
The Correct Answer is B
Rationale:
A. Hydrochlorothiazide does not prevent angiotensin II from binding with receptor sites; this action is typically associated with ACE inhibitors or angiotensin receptor blockers.
B. Hydrochlorothiazide decreases the reabsorption of sodium and water in the distal renal tubule, which leads to increased urine output and decreased blood volume, effectively lowering blood pressure.
C. Hydrochlorothiazide does not block beta receptors; this is the mechanism of action for beta-blockers.
D. Hydrochlorothiazide does not promote the movement of extravascular fluids into the vascular compartment; instead, it reduces blood volume by promoting diuresis.
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Correct Answer is C
Explanation
Rationale:
A. Applying a warming blanket is not appropriate, as it may exacerbate the client's reaction to the infusion and is not a standard pre-medication strategy.
B. Infusing amphotericin B deoxycholate over 1 hour is too rapid; it is typically infused over 2-6 hours to minimize adverse effects.
C. Administering diphenhydramine prior to the administration of amphotericin B can help prevent or alleviate infusion-related reactions such as fever and chills, which the client experienced during previous infusions.
D. Monitoring vital signs once per hour following administration is insufficient; vital signs should be monitored more frequently during and immediately after the infusion to promptly detect and address any adverse reactions.
Correct Answer is A
Explanation
Rationale:
A. Frequent sputum tests may be needed to monitor the effectiveness of isoniazid, particularly in assessing the resolution of tuberculosis infection.
B. Isoniazid is usually prescribed for a minimum of six months for tuberculosis treatment, not just a month. Thus, stopping after one month is incorrect.
C. Antacids containing aluminum should not be taken concurrently with isoniazid, as they can interfere with the absorption of the medication, reducing its effectiveness.
D. Constipation is not a common side effect of isoniazid. The more frequent side effects include peripheral neuropathy and liver toxicity, making this statement incorrect.