Nursing Elites

1. A client is receiving a continuous IV infusion of heparin for the treatment of deep vein thrombosis. The client’s activated partial thromboplastin time (aPTT) level is 80 seconds. The client’s baseline before the initiation of therapy was 30 seconds. Which action does the nurse anticipate is needed?

• A. Shutting off the heparin infusion
• B. Increasing the rate of the heparin infusion
• C. Decreasing the rate of the heparin infusion
• D. Leaving the rate of the heparin infusion as is

Correct answer: C

Rationale: The nurse needs to decrease the rate of the heparin infusion. The therapeutic dose of heparin for the treatment of deep vein thrombosis is designed to keep the aPTT between 1.5 and 2.5 times normal. With the client's aPTT level elevated to 80 seconds from a baseline of 30 seconds, it indicates that the current rate of heparin infusion is too high. Lowering the rate of infusion is necessary to bring the aPTT within the desired therapeutic range. Choices A, B, and D are incorrect because shutting off the infusion, increasing the rate, or leaving it as is would not address the elevated aPTT level and may lead to complications.

2. The client with type 1 diabetes mellitus is taught to take isophane insulin suspension NPH (Humulin N) at 5 PM each day. The client should be instructed that the greatest risk of hypoglycemia will occur at about what time?

• A. 11 AM, shortly before lunch.
• B. 1 PM, shortly after lunch.
• C. 6 PM, shortly after dinner.
• D. 1 AM, while sleeping.

Correct answer: D

Rationale: The correct answer is D, 1 AM, while sleeping. Isophane insulin suspension NPH (Humulin N) peaks around 6-8 hours after administration, which increases the risk of hypoglycemia during the night. Choice A, 11 AM, shortly before lunch, is incorrect because the peak effect of NPH insulin occurs much later. Choice B, 1 PM, shortly after lunch, is incorrect as it is too early for the peak effect of NPH insulin. Choice C, 6 PM, shortly after dinner, is also incorrect because the peak risk of hypoglycemia with NPH insulin occurs later in the night.

3. Why is the combination drug trimethoprim-sulfamethoxazole (TMP-SMX) necessary?

• A. To broaden the antibacterial spectrum.
• B. To decrease bacterial resistance.
• C. To improve the taste.
• D. To minimize toxic effects.

Correct answer: B

Rationale: The correct answer is B: To decrease bacterial resistance. Trimethoprim-sulfamethoxazole (TMP-SMX) is a combination drug used to prevent bacterial resistance to sulfonamides. It works by targeting different steps in the bacterial metabolic pathway, making it harder for bacteria to develop resistance. Choice A is incorrect because the combination does not broaden the antibacterial spectrum; instead, it enhances effectiveness against specific bacteria. Choice C is incorrect as taste improvement is not the primary reason for combining these drugs. Choice D is incorrect because while combination therapy can sometimes help minimize toxic effects, the primary purpose in this case is to address bacterial resistance.

4. The client with chronic renal failure is being taught about dietary restrictions by the nurse. Which of the following food items should the client avoid?

• A. Apples
• B. Bananas
• C. Chicken
• D. Rice

Correct answer: B

Rationale: The correct answer is B: Bananas. Bananas are high in potassium, which should be limited in clients with chronic renal failure to prevent hyperkalemia. Apples (choice A), chicken (choice C), and rice (choice D) are not typically restricted in clients with chronic renal failure. Apples and rice are lower in potassium, while chicken is a good source of lean protein, which is usually encouraged in these clients to meet their protein needs without excess potassium intake.

5. The patient is receiving sulfadiazine. The healthcare provider knows that this patient’s daily fluid intake should be at least which amount?

• A. 1000 mL/day
• B. 1200 mL/day
• C. 2000 mL/day
• D. 2400 mL/day

Correct answer: C

Rationale: Sulfadiazine may lead to crystalluria, a condition where crystals form in the urine. Adequate fluid intake helps prevent this adverse effect by ensuring urine is dilute enough to prevent crystal formation. The recommended daily fluid intake for a patient receiving sulfadiazine is at least 2000 mL/day. Choices A, B, and D are incorrect because they do not provide a sufficient amount of fluid intake to prevent crystalluria in patients on sulfadiazine.

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