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 B
Explanation
Choice A Reason:
Reporting the client's abnormal lung sounds to the healthcare provider is inappropriate. This option is not appropriate because vesicular breath sounds are actually normal lung sounds. They are soft, low-pitched sounds heard predominantly during inspiration in the peripheral lung fields. Reporting them as abnormal would be incorrect and could potentially lead to unnecessary concern or intervention.
Choice B Reason:
Continuing with the remainder of the client's physical assessment is appropriate. Vesicular breath sounds in the bases of both lungs posteriorly are normal findings. They indicate adequate ventilation and airflow in the lower lung fields. Therefore, there is no need for immediate intervention or further assessment specific to this finding. Continuing with the remainder of the physical assessment is appropriate to assess other aspects of the client's health.
Choice C Reason:
Asking the client to cough and then auscultate at the site again is inappropriate. Asking the client to cough and then auscultate again is not necessary in response to hearing vesicular breath sounds. Vesicular breath sounds are normal lung sounds and do not require further assessment or intervention. Coughing would not change the character of vesicular breath sounds.
Choice D Reason:
Measuring the client's oxygen saturation with a pulse oximeter is inappropriate. While measuring oxygen saturation with a pulse oximeter is an important assessment, it is not specifically indicated in response to hearing vesicular breath sounds. Vesicular breath sounds indicate normal ventilation and airflow in the lower lung fields, but they do not provide direct information about oxygenation status. Oxygen saturation should be assessed as part of a comprehensive respiratory assessment, but it does not need to be prioritized solely based on the finding of vesicular breath sounds.
Correct Answer is C
Explanation
Choice A Reason:
Purulent secretions from eyes and nares is incorrect. Purulent secretions, which are thick and yellow or green in color, typically indicate the presence of a bacterial infection rather than allergic rhinitis. Allergic rhinitis is more commonly associated with clear nasal discharge, although it can sometimes be accompanied by a mild increase in nasal secretions.
Choice B Reason:
Snoring and bilateral, pale gray nodules is incorrect. Snoring and bilateral, pale gray nodules suggest adenoid hypertrophy rather than allergic rhinitis. Adenoid hypertrophy refers to enlargement of the adenoids, which are lymphoid tissue located in the back of the nasal cavity. Enlarged adenoids can lead to snoring and the presence of grayish nodules upon examination of the nasopharynx.
Choice C Reason:
Intranasal edema and swelling of turbinates are correct. Intranasal edema (swelling inside the nose) and swelling of turbinates are characteristic features of allergic rhinitis. Allergic rhinitis results from inflammation of the nasal mucosa in response to exposure to allergens, leading to nasal congestion and swelling of the turbinates.
Choice D Reason:
Eye tearing and thick yellow nasal drainage is incorrect. Eye tearing and thick yellow nasal drainage suggest the presence of sinusitis rather than allergic rhinitis. Sinusitis is characterized by inflammation of the sinuses, which can result in symptoms such as facial pain or pressure, thick nasal discharge, and eye tearing due to sinus pressure affecting the tear ducts.
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