Nursing Elites

1. When taking Digoxin, low levels of what can cause toxicity?

• A. Potassium
• B. Calcium
• C. Sodium
• D. Magnesium

Correct answer: A

Rationale: Low potassium levels can lead to Digoxin toxicity. Digoxin competes with potassium for binding sites on the sodium-potassium pump. When potassium levels are low, there is an increased risk of Digoxin binding and toxicity. Choice B (Calcium) is incorrect because low calcium levels are not directly linked to Digoxin toxicity. Choice C (Sodium) is incorrect as low sodium levels do not cause Digoxin toxicity. Choice D (Magnesium) is incorrect as low magnesium levels do not contribute to Digoxin toxicity.

2. When teaching a client with a new prescription for warfarin, which statement should the nurse include?

• A. Avoid using a soft toothbrush.
• B. Avoid foods high in vitamin K.
• C. Report any signs of bleeding to your provider.
• D. Use an electric shaver for shaving.

Correct answer: C

Rationale: The correct statement the nurse should include when teaching a client with a new prescription for warfarin is to report any signs of bleeding to their provider. Bleeding can indicate excessive anticoagulation, a potential side effect of warfarin therapy that needs prompt medical attention. Choices A, B, and D are incorrect because while oral hygiene measures, dietary considerations, and skin care are important, they are not the priority when teaching a client about warfarin therapy. Monitoring for and reporting signs of bleeding is crucial due to the anticoagulant effects of warfarin.

3. A client has a Cerebrospinal fluid infection with gram-negative bacteria. Which of the following Cephalosporin antibiotics should be administered IV to treat this infection?

• A. Cefaclor
• B. Cefazolin
• C. Cefepime
• D. Cephalexin

Correct answer: C

Rationale: In treating a Cerebrospinal fluid infection caused by gram-negative bacteria, Cefepime, a fourth-generation cephalosporin, is the most suitable choice due to its enhanced efficacy against gram-negative organisms in such infections. Cefaclor (Choice A) is a second-generation cephalosporin more commonly used for respiratory tract infections. Cefazolin (Choice B) is a first-generation cephalosporin often used for skin and soft tissue infections. Cephalexin (Choice D) is a first-generation cephalosporin indicated for skin and urinary tract infections, but not the optimal choice for a Cerebrospinal fluid infection with gram-negative bacteria.

4. Which of the following is NOT an opioid or NSAID?

• A. Morphine
• B. Ibuprofen
• C. Hydromorphone
• D. Acetaminophen

Correct answer: D

Rationale: Acetaminophen is the correct answer as it is not classified as an opioid or NSAID. Acetaminophen is considered a non-opioid analgesic, which means it works by a different mechanism than opioids and NSAIDs to relieve pain and reduce fever. Morphine, hydromorphone, and ibuprofen, on the other hand, are classified as opioids or NSAIDs. Morphine and hydromorphone are opioids, while ibuprofen is an NSAID (Nonsteroidal Anti-Inflammatory Drug), all of which work through different mechanisms compared to acetaminophen.

5. 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.

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