The nurse observes that a client is experiencing melena. Which serum laboratory test should the nurse monitor in response to this finding?
White blood cell count (WBC).
Glucose.
Blood urea nitrogen (BUN).
Hematocrit.
The Correct Answer is D
Choice A Reason:
White blood cell count (WBC) is inappropriate. White blood cell count is typically monitored to assess for signs of infection or inflammation. While it's important to monitor WBC count in certain situations, such as suspected infection, melena itself is not directly indicative of an increased risk of infection. Therefore, monitoring WBC count may not be the most immediate response to the finding of melena.
Choice B Reason:
Glucose is inappropriate. Glucose monitoring is essential for patients with diabetes or those at risk of hypoglycemia or hyperglycemia. However, melena is not directly related to glucose metabolism or regulation. Therefore, monitoring glucose levels would not be the most relevant response to the finding of melena.
Choice C Reason:
Blood urea nitrogen (BUN) is inappropriate. Blood urea nitrogen is often monitored to assess kidney function and hydration status. While severe bleeding can potentially lead to hypovolemia and prerenal azotemia (elevated BUN due to decreased renal perfusion), monitoring BUN would not be the immediate response to the finding of melena. Instead, assessing for signs of hypovolemia and monitoring other markers of blood loss, such as hematocrit, would be more appropriate.
Choice D Reason:
Hematocrit is appropriate. Melena refers to the passage of black, tarry stools containing blood that has been digested. It indicates upper gastrointestinal bleeding, typically from the stomach or upper small intestine. Monitoring the hematocrit level is important because significant bleeding, as indicated by melena, can lead to a decrease in the hematocrit level due to the loss of red blood cells and plasma volume. Monitoring the hematocrit helps assess the severity of the bleeding and guides treatment decisions, such as the need for blood transfusions. Therefore, the nurse should monitor the hematocrit level in response to the finding of melena.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A Reason:
Hyperextension and palmar flexion are correct. Hyperextension involves moving the wrist joint backward, testing its ability to extend beyond its neutral position. Palmar flexion involves moving the wrist joint forward, testing its ability to flex toward the palm. These movements collectively assess the range of motion of the wrist joint in both directions, which is essential for identifying any limitations or pain associated with certain movements. Since the client presents with right wrist pain and ecchymosis, assessing both hyperextension and palmar flexion can help determine if there's any injury or impairment affecting the wrist's mobility.
Choice B Reason:
Plantar flexion is incorrect. Plantar flexion refers to a movement of the foot and ankle, not the wrist. Therefore, instructing the client to perform plantar flexion would not assess the wrist's mobility and is not relevant to the presented scenario of right wrist pain with ecchymosis.
Choice C Reason:
Forearm pronation is incorrect. Forearm pronation involves rotating the forearm so that the palm faces downward. This movement primarily assesses the pronation and supination of the forearm, not the wrist's mobility. Since the client's symptoms are specific to the wrist, assessing forearm pronation would not directly evaluate the wrist's range of motion.
Choice D Reason:
Forearm supination is incorrect. Forearm supination involves rotating the forearm so that the palm faces upward. Similar to forearm pronation, this movement primarily assesses the forearm's mobility, not the wrist's mobility. Therefore, instructing the client to perform forearm supination would not be an appropriate method for assessing the wrist's range of motion in the context of right wrist pain with ecchymosis.
Correct Answer is A
Explanation
Choice A Reason:
Asking the client to recall what was consumed for lunch and breakfast is appropriate. Asking the client to recall recent events, such as what was consumed for lunch and breakfast, helps assess their short-term memory. Difficulty recalling recent events or recent medication doses may indicate emery impairment or cognitive decline, which could be contributing to the reported confusion and forgetfulness. This assessment provides valuable information about the client's ability to retain and recall recent information, which is pertinent to understanding the extent of memory impairment.
Choice B Reason:
Asking the spouse how often the pain medication is to be taken is inappropriate. While asking the spouse about the pain medication regimen provides information about the client's medication schedule, it does not directly assess the client's memory. Additionally, relying solely on the spouse's report may not accurately reflect the client's memory abilities or recall of medication instructions.
Choice C Reason:
Request for the spouse to write down the things the client forgets is inappropriate. Asking the spouse to write down forgotten items may help track memory lapses but does not directly assess the client's memory during the home visit. It also does not provide real-time information about the client's ability to recall recent events or medication instructions.
Choice D Reason:
Observing client ability to perform activities of daily living (ADLs) is inappropriate. Assessing the client's ability to perform activities of daily living (ADLs) is important for evaluating overall functional status but may not specifically target memory assessment. While memory impairment can impact ADL performance, it is not the most direct assessment for evaluating memory specifically during the home visit.
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