a nurse is teaching a client who has a new prescription for brimonidine ophthalmic drops and wears soft contact lenses which of the following instruct

ATI RN

ATI Pharmacology

1. A client has a new prescription for Brimonidine ophthalmic drops and wears soft contact lenses. Which of the following instructions should the nurse include in the teaching?

A. This medication can stain your contacts.
B. This medication can cause your pupils to constrict.
C. This medication can absorb into your contacts.
D. This medication can slow your heart rate.

Correct answer: C

Rationale: The correct instruction the nurse should include is that Brimonidine can absorb into soft contact lenses. To prevent this, the client should remove the contacts, instill the medication, and wait at least 15 minutes before putting the contacts back in to avoid any potential absorption of the medication into the lenses. Choices A, B, and D are incorrect because Brimonidine is not known to stain contacts, cause pupil constriction, or slow heart rate.

2. Which of the following is a potassium-sparing diuretic?

A. Furosemide
B. Spironolactone
C. Hydrochlorothiazide
D. Bumetanide

Correct answer: B

Rationale: Spironolactone is classified as a potassium-sparing diuretic. It works by antagonizing the aldosterone receptor, leading to potassium retention and sodium excretion. This mechanism makes it a suitable choice for conditions where potassium retention is desired, such as in patients with heart failure or liver cirrhosis. Choices A, C, and D are not potassium-sparing diuretics. Furosemide, hydrochlorothiazide, and bumetanide are loop diuretics and thiazide diuretics, respectively, which promote the excretion of potassium.

3. Why has an ACE inhibitor been prescribed following an MI?

A. “This medication will lower your potassium level.”
B. “ACE inhibitors have been found to reduce mortality following MI.”
C. “ACE inhibitors are always prescribed with a beta blocker and calcium channel blocker following an MI.”
D. “This medication will treat your hypotension.”

Correct answer: B

Rationale: Following a myocardial infarction (MI), ACE inhibitors are commonly prescribed due to their proven benefit in reducing mortality and improving outcomes post-MI. These medications help by decreasing the workload of the heart, preventing remodeling of the heart chambers, and improving survival rates. While ACE inhibitors may have effects on potassium levels, the primary reason for their prescription post-MI is their mortality-reducing properties.

4. A client has a prescription for gentamicin for the treatment of an infection. Which finding indicates a potential adverse reaction to the medication?

A. Blood pressure 160/90 mm Hg
B. Presence of red blood cells in the urine
C. Urine output of 35 mL/hr
D. Respiratory rate of 22/min

Correct answer: B

Rationale: The presence of red blood cells in the urine can indicate nephrotoxicity, which is a potential adverse effect of gentamicin. Gentamicin can cause damage to the kidneys, leading to the presence of red blood cells in the urine as a sign of renal impairment. Monitoring for this finding is crucial to detect and manage adverse reactions promptly. High blood pressure (Choice A) is not typically associated with gentamicin use. Low urine output (Choice C) is more suggestive of kidney injury rather than nephrotoxicity specifically related to gentamicin. Respiratory rate (Choice D) is not a common indicator of adverse reactions to gentamicin.

5. What is an expected outcome for Lithium use in patients with bipolar disorder?

A. Reduced risk of myocardial infarction
B. Reduced risk of GI ulcers
C. Decrease in respiratory distress
D. Decreased incidence of acute manic episodes

Correct answer: D

Rationale: The correct answer is D: Decreased incidence of acute manic episodes. Lithium is commonly used to treat bipolar disorder by helping to stabilize mood and reduce the intensity and frequency of manic episodes. This leads to better overall management of the disorder. Choices A, B, and C are incorrect because lithium is not known to reduce the risk of myocardial infarction, GI ulcers, or respiratory distress in patients with bipolar disorder.