A client who was recently diagnosed with atrial fibrillation is receiving warfarin. To see the drug's effectiveness, which laboratory finding should the practical nurse (PN) review?
Complete blood count.
Serum troponin levels.
Creatinine clearance.
Prothrombin time (PT)
The Correct Answer is D
Choice A: A complete blood count (CBC) is important for monitoring various aspects of the blood, including the number of red blood cells, white blood cells, and platelets. While important for assessing overall health, a CBC is not the primary laboratory finding used to assess the effectiveness of warfarin in managing atrial fibrillation.
Choice B: Serum troponin levels are typically measured to assess cardiac muscle damage, such as in myocardial infarction (heart attack). They are not the primary indicator for assessing the effectiveness of warfarin in atrial fibrillation.
Choice C: Creatinine clearance is a measure of kidney function and is not the primary laboratory finding used to evaluate the effectiveness of warfarin.
Choice D: Prothrombin time (PT) is the most relevant laboratory finding for monitoring the effectiveness of warfarin in clients with atrial fibrillation. Warfarin's therapeutic effect is primarily assessed through PT measurements, with the goal of maintaining the client's international normalized ratio (INR) within a specific target range to prevent excessive bleeding or clotting.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A: Sitting quietly in her mother's lap may be a sign of shyness or caution in a healthcare setting, but it is not necessarily a typical behavior for a 4-year-old child.
Choice B: Drawing a picture of oneself with facial features is a more advanced skill and may be seen in older preschool-aged children. It is not a typical behavior for a 4- year-old.
Choice C: Talking to an imaginary friend is a normal and developmentally appropriate behavior for a 4-year-old child. Imaginary friends can provide comfort and companionship during times of stress or change.
Choice D: Ignoring other children in the play area may be a sign of shyness or introverted behavior but is not necessarily indicative of normal behavior for a 4-year-old. Social interaction with peers can vary widely among children.
Correct Answer is ["591"]
Explanation
One ounce is equivalent to 29.57 mL, so 12 ounces of coffee is equal to 354.84 mL. The cup of milk is usually measured as 8 ounces, which is 236.59 mL.
The oatmeal may also contain some fluid, but the amount is not given, so it cannot be counted.
Therefore, the total fluid intake at breakfast is 354.84 + 236.59 = 591.43 mL.
The nurse should document this value in the client's record, rounding it to the nearest whole number, which is 591 mL.
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