Nursing Elites

1. A healthcare provider is assessing a client who is receiving heparin therapy for deep vein thrombosis (DVT). Which of the following laboratory values should the provider monitor to evaluate the therapeutic effect of the heparin?

• A. Platelet count
• B. Partial thromboplastin time (PTT)
• C. Prothrombin time (PT)
• D. Bleeding time

Correct answer: B

Rationale: The Partial Thromboplastin Time (PTT) is the correct laboratory value to monitor heparin therapy. PTT measures the time it takes for blood to clot and is specifically used to evaluate the effectiveness of anticoagulation therapy such as heparin. Monitoring the PTT helps ensure that the heparin dose is within the therapeutic range. Platelet count, Prothrombin time (PT), and Bleeding time are not specific laboratory values for monitoring the therapeutic effect of heparin therapy. Platelet count is more indicative of platelet function, PT is used to monitor warfarin therapy, and Bleeding time assesses platelet function rather than the effect of heparin therapy.

2. A nurse in the telemetry unit is receiving the laboratory findings for an adult male client who is being treated for a myocardial infarction. Which of the following is an expected finding for the client?

• A. Troponin I (TnI) 8 ng/mL
• B. Brain natriuretic peptide (BNP) 10 ng/L
• C. Alanine aminotransferase (ALT) 45 units/L
• D. High-density lipoprotein (HDL) 75 mg/dL

Correct answer: A

Rationale: The correct answer is A. Troponin I is a specific marker for myocardial infarction, and levels of 8 ng/mL are elevated, indicating heart muscle damage. Brain natriuretic peptide (BNP) is more related to heart failure rather than myocardial infarction, making choice B incorrect. Alanine aminotransferase (ALT) is a liver enzyme and not specific to myocardial infarction, so choice C is incorrect. High-density lipoprotein (HDL) is a type of cholesterol and is not typically used to diagnose or monitor myocardial infarction, making choice D incorrect.

3. A nurse is preparing to perform a sterile dressing change for a client with a surgical wound. Which action should the nurse take to prevent contamination during the dressing change?

• A. Proceed with the dressing change
• B. Restart the procedure if the sterile solution splashes onto the sterile field
• C. Continue without concern for minor splashes
• D. Delegate the task to another nurse

Correct answer: B

Rationale: The correct action for the nurse to take to prevent contamination during a sterile dressing change is to restart the procedure if the sterile solution splashes onto the sterile field. Any contamination of the sterile field compromises the aseptic technique and increases the risk of infection for the client. Therefore, it is crucial to maintain the sterility of the field throughout the procedure. Choices A, C, and D are incorrect because proceeding with the dressing change, continuing without concern for minor splashes, or delegating the task to another nurse would all compromise the sterility of the procedure and increase the risk of infection for the client.

4. A postpartum client with AB negative blood whose newborn is B positive requires what intervention?

• A. Administer Rh immune globulin within 72 hours of delivery
• B. Administer Rh immune globulin at the 6-week postpartum visit
• C. No Rh immune globulin is needed since this is the second pregnancy
• D. Both mother and baby need Rh immune globulin

Correct answer: A

Rationale: The correct intervention is to administer Rh immune globulin within 72 hours of delivery. This is essential to prevent the mother from forming antibodies against Rh-positive blood, which could cause complications in future pregnancies. Choice B is incorrect as the administration should be immediate postpartum. Choice C is incorrect as Rh immune globulin is needed for each Rh-incompatible pregnancy. Choice D is incorrect as only the mother, who is Rh-negative, needs Rh immune globulin.

5. A client has been taking propranolol. Which of the following findings indicates a need to withhold the medication?

• A. Sodium 130 mEq/L
• B. Blood pressure 156/90 mm Hg
• C. Potassium 5.2 mEq/L
• D. Pulse 54/min

Correct answer: D

Rationale: A pulse of 54/min indicates bradycardia, which is a side effect of propranolol, a beta-blocker. The medication should be withheld if the client's pulse drops below 60/min. The other findings (sodium levels, blood pressure, and potassium levels) are not directly indicative of the need to withhold propranolol.

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