potassium sparing diuretics have the primary effect upon the found in the kidney

ATI RN

ATI Pharmacology Proctored

1. Potassium-sparing diuretics primarily affect which part of the kidney?

A. Proximal convoluted tubule
B. Loop of Henle
C. Collecting duct
D. Distal convoluted tubule

Correct answer: D

Rationale: Potassium-sparing diuretics exert their primary effects on the distal convoluted tubule in the kidney. By acting on this specific part of the nephron, these diuretics promote sodium excretion while sparing potassium, thus helping to maintain potassium levels in the body. This mechanism differs from other diuretics that may cause potassium loss as a side effect. Understanding the site of action of potassium-sparing diuretics is crucial in clinical practice for managing conditions like hypertension and edema where diuresis is necessary without the risk of hypokalemia.

2. A client is prescribed Digoxin. Which of the following findings should the nurse monitor as a sign of potential toxicity?

A. Bradycardia
B. Hypertension
C. Hyperglycemia
D. Hypocalcemia

Correct answer: A

Rationale: Bradycardia is a common sign of Digoxin toxicity. Digoxin can lead to toxicity, which can manifest as various signs and symptoms, including bradycardia. Monitoring the client's heart rate closely is crucial to detect and manage potential toxicity early. Hypertension, hyperglycemia, and hypocalcemia are not typically associated with Digoxin toxicity; therefore, they are incorrect choices.

3. A client has anemia and a new prescription for ferrous sulfate liquid. Which of the following instructions should the nurse provide?

A. Take the medication on an empty stomach to decrease gastrointestinal irritation.
B. Take the medication with orange juice to enhance absorption.
C. Take the medication with milk.
D. Rinse the mouth before taking the iron.

Correct answer: B

Rationale: Taking ferrous sulfate with orange juice can help increase the absorption of iron. Orange juice contains vitamin C, which aids in the absorption of iron from the medication. This combination can enhance the effectiveness of the iron supplement for a client with anemia. Option A is incorrect because taking iron on an empty stomach can cause gastrointestinal upset. Option C is incorrect because calcium in milk can inhibit iron absorption. Option D is irrelevant to enhancing iron absorption.

4. Which of the following conditions is not treated with Lansoprazole?

A. Zollinger-Ellison syndrome
B. Gastritis
C. Hypertension
D. Reflux

Correct answer: C

Rationale: Lansoprazole is a proton pump inhibitor used to treat conditions related to excessive stomach acid production, such as Zollinger-Ellison syndrome, gastritis, and reflux. However, it is not indicated for the treatment of hypertension, which is managed using antihypertensive medications. Therefore, the correct answer is C: Hypertension.

5. A drug ending in the suffix (azole) is considered a ______.

A. H
B. ACE inhibitor
C. Antifungal
D. Beta agonist

Correct answer: C

Rationale: Drugs ending in the suffix -azole are commonly associated with antifungal medications. Examples include fluconazole, ketoconazole, and itraconazole. These medications are used to treat fungal infections by inhibiting the growth of fungi. Therefore, the correct answer is option C, 'Antifungal'. Options A, B, and D do not accurately describe drugs ending in -azole.