The nurse is caring for a client who is being evaluated for possible deep vein thrombosis of the right extremity. Which laboratory result is of most concern to the nurse?
Activated Partial Thromboplastin Time (aPTT) of 25.
D-dimer of 500 ng/mL.
Prothrombin Time (PT) of 14 seconds.
Platelet count of 148,000 uL.
The Correct Answer is B
Choice A rationale
Activated Partial Thromboplastin Time (aPTT) of 25 is within the normal range (25-35 seconds) and is not directly related to deep vein thrombosis (DVT)89.
Choice B rationale
A D-dimer level of 500 ng/mL is elevated (normal range is typically less than 250 ng/mL), which can indicate the presence of a clot, such as in DVT8910.
Choice C rationale
Prothrombin Time (PT) of 14 seconds is within the normal range (11-13.5 seconds) and is not directly related to DVT89.
Choice D rationale
A platelet count of 148,000 uL is within the normal range (150,000-450,000 uL) and is not directly related to DVT89.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A rationale
Activated Partial Thromboplastin Time (aPTT) of 25 is within the normal range (25-35 seconds) and is not directly related to deep vein thrombosis (DVT)89.
Choice B rationale
A D-dimer level of 500 ng/mL is elevated (normal range is typically less than 250 ng/mL), which can indicate the presence of a clot, such as in DVT8910.
Choice C rationale
Prothrombin Time (PT) of 14 seconds is within the normal range (11-13.5 seconds) and is not directly related to DVT89.
Choice D rationale
A platelet count of 148,000 uL is within the normal range (150,000-450,000 uL) and is not directly related to DVT89.
Correct Answer is A
Explanation
Choice A rationale
A decrease in inflammation at the site of infection is a key indicator that antibiotic therapy is effective. Inflammation is a response to infection, so if the inflammation is reducing, it suggests that the infection is being successfully treated.
Choice B rationale
An increase in circulating neutrophils could indicate an ongoing response to infection, rather than resolution. Neutrophils are a type of white blood cell that the body produces more of when there’s an infection. Therefore, an increase in neutrophils does not necessarily indicate that the antibiotic therapy has been effective.
Choice C rationale
A positive culture and sensitivity report indicates the presence of bacteria and identifies which antibiotics the bacteria are sensitive to. While this information is crucial for selecting the most effective antibiotic, it does not indicate whether the chosen antibiotic therapy has been effective.
Choice D rationale
A symptomatic fever could indicate an ongoing infection, rather than resolution. While fever can decrease as an infection is brought under control, the presence of a symptomatic fever does not necessarily indicate that the antibiotic therapy has been effective.
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