Nursing Elites

1. A patient with deep vein thrombosis (DVT) is prescribed warfarin. Which dietary instruction should the nurse provide?

• A. Avoid foods high in vitamin K.
• B. Increase intake of dairy products.
• C. Limit intake of citrus fruits.
• D. Avoid high-sodium foods.

Correct answer: A

Rationale: Patients on warfarin should avoid foods high in vitamin K because vitamin K can interfere with the anticoagulant effect of the medication. Warfarin works by inhibiting vitamin K-dependent clotting factors, so consuming large amounts of vitamin K-rich foods may decrease the effectiveness of the medication. Choices B, C, and D are incorrect. Increasing intake of dairy products, limiting citrus fruits, or avoiding high-sodium foods are not directly related to the mechanism of action of warfarin or its dietary considerations.

2. A 35-year-old male patient presents with right upper quadrant pain, fever for the past 48 hours, preceded by new onset jaundice over the past few weeks. He states that he has had diarrhea on and off for several years but never had this investigated. A liver ultrasound is negative for gallstones or evidence of cholecystitis. His lab tests reveal total bilirubin 6.2, alkaline phosphatase 450, AST 150, ALT 120, albumin 2.6. The next diagnostic test of choice would be

• A. Liver biopsy
• B. Magnetic resonance cholangiopancreatography
• C. Hepatitis B surface antigen and hepatitis C RNA assay
• D. Colonoscopy with biopsies

Correct answer: B

Rationale: The patient's presentation with right upper quadrant pain, fever, and jaundice, along with abnormal liver function tests, suggests a biliary tract problem. Given the suspicion of obstructed bile flow and the negative liver ultrasound for gallstones, magnetic resonance cholangiopancreatography (MRCP) is the next appropriate step to evaluate the biliary system and pancreatic ducts. MRCP is non-invasive and can provide detailed images for diagnosis. Liver biopsy is not the preferred initial diagnostic test in this context. Testing for hepatitis B and C would not address the current clinical scenario, and colonoscopy is not indicated for the presenting symptoms.

3. The healthcare provider is assessing a client with Raynaud's phenomenon. Which finding should the healthcare provider expect?

• A. Thickened and hardened skin.
• B. Painless ulcers on the fingertips.
• C. Episodes of cyanosis and pallor in the fingers.
• D. Red, scaly patches on the hands.

Correct answer: C

Rationale: Raynaud's phenomenon is characterized by vasospasm, leading to episodes of cyanosis (bluish discoloration) and pallor (pale color) in the fingers or toes, often triggered by cold temperatures or stress. This occurs due to the reduced blood flow during vasospastic episodes, causing the discoloration. Choices A, B, and D are incorrect findings associated with other conditions and are not typical of Raynaud's phenomenon.

4. While assessing a 70-year-old female client with Alzheimer's disease, the nurse notes deep inflamed cracks at the corners of her mouth. What intervention should the nurse include in this client's plan of care?

• A. Apply a moisturizing cream to the affected areas.
• B. Encourage the client to consume foods rich in vitamin B.
• C. Notify the healthcare provider for further evaluation.
• D. Ensure that the client gets adequate B vitamins in foods or supplements.

Correct answer: D

Rationale: Cracks at the corners of the mouth, known as angular cheilitis, can be a sign of vitamin B deficiency, specifically B2 (riboflavin) or B3 (niacin). The nurse should ensure that the client receives adequate B vitamins through foods rich in these nutrients or supplements to address the deficiency, which can help improve the condition of the client's mouth.

5. Prior to elective surgery, a patient taking warfarin should receive which instruction regarding warfarin therapy?

• A. Continue taking warfarin until the day of surgery.
• B. Stop taking warfarin three days before surgery.
• C. Switch to aspirin before surgery.
• D. Stop taking warfarin one week before surgery.

Correct answer: D

Rationale: Prior to elective surgery, a patient taking warfarin should be instructed to stop taking warfarin around one week before the procedure. This timeframe allows for the effects of warfarin to diminish, lowering the risk of excessive bleeding during surgery. Continuing warfarin until the day of surgery (Choice A) increases the risk of bleeding complications. Stopping warfarin three days before surgery (Choice B) may not provide enough time for the anticoagulant effects to subside. Switching to aspirin before surgery (Choice C) is not recommended as a substitute for warfarin in this context.

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