Nursing Elites

1. A client with a history of deep vein thrombosis (DVT) is prescribed warfarin. Which laboratory value should the nurse monitor to assess the therapeutic effect of this medication?

• A. Platelet count
• B. Prothrombin time (PT)
• C. White blood cell count
• D. Hemoglobin level

Correct answer: B

Rationale: Prothrombin time (PT) is the correct laboratory value to monitor to assess the therapeutic effect of warfarin. Warfarin works by inhibiting clotting factors, and PT measures the time it takes for blood to clot. Monitoring PT helps ensure that the medication is working effectively to prevent clot formation without causing excessive bleeding. Platelet count (Choice A) is not specific to warfarin therapy and assesses the number of platelets in the blood. White blood cell count (Choice C) and hemoglobin level (Choice D) are not directly related to monitoring the therapeutic effect of warfarin.

2. The nurse identifies an electrolyte imbalance, a weight gain of 4.4 lbs in 24 hours, and an elevated central venous pressure for a client with full-thickness burns. Which intervention should the nurse implement?

• A. Administer diuretics
• B. Review urine output
• C. Auscultate for irregular heart rate
• D. Increase oral fluid intake

Correct answer: C

Rationale: An elevated CVP and sudden weight gain indicate fluid overload, which can strain the heart. Auscultating for an irregular heart rate is crucial as electrolyte imbalances and fluid shifts after burns can lead to cardiac complications. Monitoring the heart rate is a priority to detect any cardiac distress early. While reviewing urine output and administering diuretics are important interventions, they should come after ensuring the client's cardiac status is stable. Increasing oral fluid intake may exacerbate the fluid overload, making it an inappropriate intervention in this scenario.

3. An adolescent who was diagnosed with diabetes mellitus Type 1 at the age of 9 is admitted to the hospital in diabetic ketoacidosis. Which occurrence is the most likely cause of ketoacidosis?

• A. Had a cold and ear infection for the past two days
• B. Missed a dose of insulin
• C. Did not follow dietary restrictions
• D. Overexerted during exercise

Correct answer: A

Rationale: The correct answer is A. Infections, like a cold and ear infection, increase the body's metabolic needs and insulin resistance, making diabetic ketoacidosis (DKA) more likely. While missing insulin doses or not following dietary restrictions can trigger DKA, an illness is the most common precipitating factor in pediatric Type 1 diabetes. Option B is less likely as missing insulin can lead to hyperglycemia but might not be the immediate cause of ketoacidosis. Option C can contribute to DKA over time, but the acute trigger is usually an illness. Option D, overexertion during exercise, is less likely to cause DKA compared to an infection.

4. A client with Addison's disease becomes confused and weak. What is the nurse's first action?

• A. Administer a dose of hydrocortisone immediately.
• B. Check the client’s electrolyte levels.
• C. Administer a dose of normal saline.
• D. Measure the client’s blood pressure in both arms.

Correct answer: A

Rationale: The correct answer is to administer a dose of hydrocortisone immediately. In Addison's disease, confusion and weakness can be signs of an adrenal crisis. Administering hydrocortisone promptly is crucial to prevent further deterioration. Checking electrolyte levels (Choice B) is important but not the first action in managing an acute adrenal crisis. Administering normal saline (Choice C) is not the priority in this situation. Measuring blood pressure in both arms (Choice D) is not the initial action needed to address the client's confusion and weakness in Addison's disease.

5. The nurse is caring for a client with a suspected myocardial infarction (MI). Which laboratory test result is most indicative of a recent MI?

• A. Elevated troponin levels
• B. Increased white blood cell count
• C. Increased lactate dehydrogenase (LDH)
• D. Elevated C-reactive protein (CRP)

Correct answer: A

Rationale: Elevated troponin levels are the most specific and sensitive indicator of myocardial infarction. Troponin levels increase within hours of an MI and remain elevated for several days. White blood cell count, lactate dehydrogenase (LDH), and C-reactive protein (CRP) are not specific markers for MI. An increased white blood cell count may indicate inflammation or infection, increased LDH levels can be seen in various conditions like liver disease or muscle injury, and elevated CRP is a general marker of inflammation rather than specific to MI.

Similar Questions