Nursing Elites

1. A client who has a new prescription for warfarin (Coumadin) asks the nurse how the medication works. What explanation should the nurse provide?

• A. It dissolves blood clots
• B. It prevents the blood from clotting
• C. It thins the blood
• D. It decreases the risk of infection

Correct answer: B

Rationale: The correct answer is B: 'It prevents the blood from clotting.' Warfarin works by inhibiting the synthesis of vitamin K-dependent clotting factors in the liver, thereby preventing the formation of blood clots. Choice A is incorrect because warfarin does not dissolve existing blood clots but prevents new ones from forming. Choice C is partially correct but not as specific as choice B in explaining how warfarin works. Choice D is unrelated to the mechanism of action of warfarin and is incorrect.

2. The nurse is caring for a client who is receiving heparin therapy. Which laboratory value should the nurse monitor to determine the effectiveness of the therapy?

• A. Prothrombin time (PT)
• B. Partial thromboplastin time (PTT)
• C. International normalized ratio (INR)
• D. Activated partial thromboplastin time (aPTT)

Correct answer: C

Rationale: The correct answer is C, International Normalized Ratio (INR). While INR is commonly used to monitor the effectiveness of warfarin therapy, in the case of heparin therapy, the Partial Thromboplastin Time (PTT) is the preferred test. Choice A, Prothrombin Time (PT), measures the activity of the extrinsic pathway of coagulation and is not the best choice for monitoring heparin therapy. Choice D, Activated Partial Thromboplastin Time (aPTT), is similar to PTT and is used to monitor heparin therapy, but PTT is the more specific test. Therefore, monitoring PTT is crucial in determining the effectiveness and safety of heparin therapy.

3. The healthcare provider is caring for a client with jaundice. Which serum laboratory value is likely to be elevated for this client?

• A. Amylase
• B. Creatinine
• C. Blood urea nitrogen
• D. Bilirubin

Correct answer: D

Rationale: Bilirubin is a key serum laboratory value that is likely to be elevated in clients with jaundice. Jaundice is characterized by a yellowish discoloration of the skin and eyes due to an excess of bilirubin, a breakdown product of hemoglobin. Elevated amylase levels are associated with pancreatic conditions, not specifically jaundice. Creatinine and blood urea nitrogen are markers of kidney function and are not directly related to jaundice.

4. A client diagnosed with tuberculosis (TB) is placed on drug therapy with rifampin (Rifadin). The client should be instructed to report which effect(s) of the medication to the healthcare provider?

• A. Reddish-orange discoloration of body fluids
• B. Bloody or blood-tinged urine
• C. Blurring of vision
• D. Weight gain of more than 2 pounds in a week

Correct answer: A

Rationale: The correct answer is A. Rifampin (Rifadin) commonly causes a reddish-orange discoloration of body fluids, including urine, sweat, saliva, and tears. This is a harmless side effect but should be reported to the healthcare provider for monitoring. Choices B, C, and D are not typically associated with rifampin therapy. Bloody or blood-tinged urine may indicate other issues such as urinary tract infection or kidney problems, blurring of vision may suggest eye problems, and significant weight gain could be related to various health conditions unrelated to rifampin.

5. The client diagnosed with a right fractured femur has skeletal traction applied to the right femur. Which interventions should the nurse implement?

• A. Perform passive range of motion to the right leg
• B. Remove skeletal weights every shift to assess right leg
• C. Turn frequently from prone to supine positions
• D. Maintain skeletal pin sites and assess for signs of infection

Correct answer: D

Rationale: Maintaining skeletal pin sites and assessing for infection are critical in skeletal traction care.

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