Nursing Elites

1. A patient prescribed warfarin is being taught about dietary restrictions by a healthcare provider. Which of the following foods should the patient be instructed to limit?

• A. Bananas
• B. Spinach
• C. Potatoes
• D. Apples

Correct answer: B

Rationale: The correct answer is B: Spinach. Spinach is high in vitamin K, which can interfere with the effectiveness of warfarin, an anticoagulant medication. Patients taking warfarin should limit foods high in vitamin K to maintain the medication's effectiveness and consistent dosage. Bananas, potatoes, and apples are not high in vitamin K and do not typically interfere with warfarin therapy.

2. A healthcare provider is reviewing the laboratory report of a client who is receiving heparin therapy for a deep vein thrombosis. Which of the following lab values indicates a therapeutic response to the therapy?

• A. PT of 12 seconds
• B. aPTT of 70 seconds
• C. Platelets of 150,000/mm3
• D. INR of 1.5

Correct answer: B

Rationale: An aPTT of 70 seconds is within the therapeutic range for a client receiving heparin therapy. The activated partial thromboplastin time (aPTT) is the most sensitive test to monitor heparin therapy. A therapeutic aPTT range for a client receiving heparin is usually 1.5 to 2.5 times the control value. Choices A, C, and D are not indicators of a therapeutic response to heparin therapy. PT measures the extrinsic pathway of coagulation and is not specific to monitoring heparin therapy. Platelet count is important to monitor for heparin-induced thrombocytopenia, but it does not indicate the therapeutic response to heparin therapy. INR is used to monitor warfarin therapy, not heparin therapy.

3. A nurse is caring for a client who has not voided for 8 hours following the removal of an indwelling urinary catheter. Which of the following actions should the nurse take first?

• A. Provide assistance to the bathroom
• B. Insert a straight catheter
• C. Increase fluids
• D. Perform a bladder scan

Correct answer: D

Rationale: Performing a bladder scan is the first step to assess bladder retention before any further interventions.

4. A nurse is caring for a client who has an indwelling urinary catheter and a prescription for a urine specimen for culture and sensitivity. Which of the following actions should the nurse take?

• A. Wipe the area around the needleless port with sterile water
• B. Insert the syringe into the needleless port at a 60-degree angle
• C. Withdraw 3 to 5 ml of urine from the port
• D. Don sterile gloves

Correct answer: C

Rationale: The correct action for the nurse to take is to withdraw 3 to 5 ml of urine from the port for an accurate culture and sensitivity test. Wiping the area around the needleless port with sterile water (Choice A) is not necessary when obtaining a urine specimen. Inserting the syringe into the needleless port at a 60-degree angle (Choice B) is incorrect as it does not align with the correct procedure for obtaining a urine specimen. Donning sterile gloves (Choice D) is a good practice but not the immediate action required for obtaining a urine specimen.

5. A healthcare provider is assessing a patient with dehydration. Which finding indicates the patient's condition is worsening?

• A. Dry mucous membranes.
• B. Tachycardia and low blood pressure.
• C. Bradycardia and shallow respirations.
• D. Clear lung sounds.

Correct answer: B

Rationale: Tachycardia and low blood pressure are indicative of worsening dehydration in a patient. Tachycardia is the body's compensatory mechanism to maintain cardiac output in response to decreased intravascular volume, while low blood pressure reflects inadequate perfusion due to decreased fluid levels. Bradycardia and shallow respirations are not typical findings in worsening dehydration, and clear lung sounds do not directly correlate with the severity of dehydration.

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