Nursing Elites

1. Which lab value is critical for monitoring warfarin therapy?

• A. Monitor INR
• B. Monitor platelet count
• C. Monitor sodium levels
• D. Monitor calcium levels

Correct answer: A

Rationale: The correct answer is A: Monitor INR. INR (International Normalized Ratio) is crucial for monitoring warfarin therapy as it helps assess the therapeutic effectiveness and bleeding risks associated with the medication. INR measures the clotting tendency of blood, which is essential in determining the appropriate dosage of warfarin. Monitoring platelet count (B), sodium levels (C), or calcium levels (D) is not primarily used for assessing warfarin therapy. Platelet count is more relevant in assessing bleeding disorders, while sodium and calcium levels are typically monitored for different medical conditions unrelated to warfarin therapy.

2. A client has a new prescription for nitroglycerin sublingual tablets. Which of the following instructions should the nurse include?

• A. Take the medication with a full glass of water.
• B. Take the medication with food to prevent stomach upset.
• C. Take one tablet every 5 minutes, up to three doses, for chest pain.
• D. Swallow the tablet whole for the best effect.

Correct answer: C

Rationale: The correct instruction for a client with a new prescription for nitroglycerin sublingual tablets is to take one tablet every 5 minutes, up to three doses, for chest pain. This dosing regimen helps relieve chest pain associated with angina by promoting vasodilation. Option A is incorrect as nitroglycerin sublingual tablets should be placed under the tongue, not swallowed with water. Option B is incorrect because taking nitroglycerin with food may decrease its effectiveness. Option D is incorrect because nitroglycerin sublingual tablets are meant to be dissolved under the tongue, not swallowed whole.

3. A healthcare professional is reviewing the medication history of a client who has a new prescription for warfarin. Which of the following medications should the healthcare professional identify as a contraindication for this client?

• A. Acetaminophen
• B. Ibuprofen
• C. Clopidogrel
• D. Metoprolol

Correct answer: C

Rationale: The correct answer is C, Clopidogrel. Clopidogrel is an antiplatelet medication that increases the risk of bleeding when taken with warfarin. Acetaminophen (choice A) and metoprolol (choice D) do not have significant interactions with warfarin. Ibuprofen (choice B) is an NSAID that can also increase the risk of bleeding when taken with warfarin, but clopidogrel is a more significant contraindication due to its antiplatelet effects. Therefore, healthcare professionals should be cautious when combining warfarin with clopidogrel due to the increased risk of bleeding compared to other options.

4. A client with chronic kidney disease is being taught about dietary modifications by a nurse. Which of the following foods should the nurse instruct the client to avoid?

• A. Grilled chicken.
• B. Fresh fruit.
• C. White bread.
• D. Cheddar cheese.

Correct answer: D

Rationale: Cheddar cheese is high in phosphorus, which should be avoided by clients with chronic kidney disease. Fresh fruit is generally a healthy choice unless the client needs to limit potassium intake. Grilled chicken is a good protein source for clients with chronic kidney disease. White bread is low in phosphorus and can be included in the diet of clients with kidney disease unless they need to watch their carbohydrate intake.

5. A nurse is caring for a client who has a chest tube. Which of the following actions should the nurse take?

• A. Clamp the chest tube for 15 minutes every 2 hours.
• B. Empty the drainage collection chamber when it is half full.
• C. Keep the drainage system below the level of the client's chest.
• D. Strip the chest tube every 2 hours to maintain patency.

Correct answer: C

Rationale: The correct action the nurse should take when caring for a client with a chest tube is to keep the drainage system below the level of the client's chest. This positioning helps prevent fluid from flowing back into the pleural space, ensuring proper drainage and effective functioning of the chest tube. Clamping the chest tube intermittently or stripping it frequently can lead to complications and should be avoided. Emptying the drainage collection chamber at specific intervals may vary based on institutional protocols, but it should be done when it is no more than two-thirds full to prevent backflow and maintain accurate monitoring of drainage output.

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