Nursing Elites

1. Which of the following drugs has a therapeutic effect that increases cardiac output and slows heart rate?

• A. Heparin
• B. Alprazolam
• C. Digoxin
• D. Levothyroxine

Correct answer: C

Rationale: Digoxin is the correct answer. It is a medication known for its positive inotropic effects, which increase cardiac output, and negative chronotropic effects, which slow the heart rate. These effects are achieved by inhibiting the sodium-potassium ATPase pump in myocardial cells. Therefore, Digoxin is commonly prescribed to manage conditions like heart failure and atrial fibrillation, where enhancing cardiac output and reducing heart rate are beneficial. Choices A, B, and D are incorrect because Heparin is an anticoagulant, Alprazolam is a benzodiazepine used for anxiety disorders, and Levothyroxine is a thyroid hormone replacement drug, none of which have the specified therapeutic effects on cardiac function.

2. A healthcare provider is reviewing the health history of a client who is starting therapy with tamoxifen. The healthcare provider should recognize that tamoxifen is contraindicated in which of the following clients?

• A. A client with a history of deep-vein thrombosis
• B. A client with a history of migraine headaches
• C. A client with a history of hypertension
• D. A client with a history of anemia

Correct answer: A

Rationale: Tamoxifen is contraindicated in clients with a history of thromboembolic events, such as deep-vein thrombosis, due to the increased risk of blood clots forming and leading to serious complications like pulmonary embolism. Clients with a history of deep-vein thrombosis are at a higher risk of recurrent thromboembolic events when taking tamoxifen, making it unsafe for such individuals. Choices B, C, and D are not contraindications for tamoxifen therapy, as migraine headaches, hypertension, and anemia do not directly interact with tamoxifen's mechanism of action or pose significant risks when used together.

3. A client is receiving combination chemotherapy. Which of the following findings should the nurse identify as an indication of an oncologic emergency?

• A. Dry oral mucous membranes
• B. Nausea and vomiting
• C. Temperature of 38.1°C (100.6°F)
• D. Anorexia

Correct answer: C

Rationale: A temperature of 38.1°C (100.6°F) can indicate an infection, which is considered an oncologic emergency in clients receiving chemotherapy due to the increased risk of sepsis in immunocompromised individuals. Dry oral mucous membranes (Choice A), nausea and vomiting (Choice B), and anorexia (Choice D) are common side effects of chemotherapy but do not typically indicate an oncologic emergency requiring immediate intervention.

4. A client has a new prescription for Lithium Carbonate. When teaching the client about ways to prevent Lithium toxicity, what advice should the nurse provide?

• A. Avoid using acetaminophen for headaches.
• B. Restrict intake of foods high in sodium.
• C. Decrease fluid intake to less than 1,500 mL daily.
• D. Limit aerobic activity in hot weather.

Correct answer: D

Rationale: The nurse should advise the client to limit aerobic activity in hot weather to prevent sodium/water depletion, which can increase the risk for Lithium toxicity. Excessive sweating and fluid loss can lead to dehydration and changes in lithium levels, potentially resulting in toxicity. Choices A, B, and C are incorrect. Avoiding acetaminophen for headaches is not directly related to Lithium toxicity. Restricting sodium intake and decreasing fluid intake can lead to increased lithium levels and toxicity, so these are not recommended actions.

5. A healthcare professional is educating a client who has a new prescription for Vitamin B12 injections. Which of the following statements should the healthcare professional include?

• A. Take the medication with a full glass of water.
• B. You will need to take this medication for the rest of your life.
• C. Expect a metallic taste in your mouth.
• D. Avoid consuming dairy products.

Correct answer: B

Rationale: The correct answer is B: 'You will need to take this medication for the rest of your life.' Clients with conditions like pernicious anemia or other causes of vitamin B12 deficiency may require lifelong cyanocobalamin supplementation to prevent deficiency. This is because their bodies are unable to absorb B12 from dietary sources adequately, necessitating ongoing injections to maintain optimal B12 levels. Choices A, C, and D are incorrect. A full glass of water is not necessary for Vitamin B12 injections. Metallic taste in the mouth is not a common side effect of Vitamin B12 injections, and there is no need to avoid consuming dairy products specifically in relation to Vitamin B12 injections.

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