An adult male is experiencing increased fatigue and occasional palpitations at rest. Which laboratory data would the nurse identify as consistent with these symptoms?
Red Blood Cells 48,000/μL (normal 4,700,000-6,100,000/μL)
Platelets (Plts) of 120,000/μL (normal 150,000-400,000/μL)
Hemoglobin (Hgb) of 6.9g/dL (normal 14-18g/dL)
White blood cell count (WBC) 11,000/mm³ (normal 5,000-10,000/mm³)
The Correct Answer is C
Choice A reason: The red blood cell (RBC) count provided is significantly below the normal range (4,700,000-6,100,000/μL). However, the unit of measure given in the question (48,000/μL) is incorrect for RBCs, so it may not be consistent with the symptoms of fatigue and palpitations. Typically, a low RBC count can contribute to these symptoms, but in this case, the measurement provided is not clear.
Choice B reason: Platelets of 120,000/μL are below the normal range (150,000-400,000/μL). While low platelet counts (thrombocytopenia) can lead to bleeding and bruising, they are not typically associated with symptoms of fatigue and palpitations. This finding is more indicative of a potential bleeding disorder rather than anemia or another condition that would cause the given symptoms.
Choice C reason: Hemoglobin (Hgb) of 6.9g/dL is significantly below the normal range (14-18g/dL) and indicates severe anemia. Anemia is a common cause of fatigue and palpitations because the body has a reduced capacity to carry oxygen to tissues. Low hemoglobin levels can lead to decreased oxygen delivery, resulting in increased fatigue and compensatory palpitations as the heart works harder to circulate oxygen-poor blood.
Choice D reason: White blood cell (WBC) count of 11,000/mm³ is slightly above the normal range (5,000-10,000/mm³) and indicates a mild leukocytosis, which is usually a sign of infection or inflammation. While leukocytosis can cause fatigue if there is an underlying infection, it is not directly associated with palpitations and severe fatigue. The primary concern with fatigue and palpitations lies more with oxygen-carrying capacity, which is affected by hemoglobin levels.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A reason:
Increasing serum potassium levels would not indicate effective therapy for a patient with Addison's disease. In Addison's disease, the adrenal glands do not produce enough aldosterone, which is responsible for regulating sodium and potassium balance. As a result, patients with Addison’s disease often experience hyperkalemia (high potassium levels). Effective therapy typically aims to normalize potassium levels, so an increase would suggest inadequate treatment or worsening of the condition.
Choice B reason:
Decreasing blood glucose levels would not typically be seen as a positive indicator in a patient with Addison's disease. The body’s ability to maintain normal blood glucose levels is compromised in Addison’s disease due to a deficiency in cortisol. Cortisol plays a key role in regulating glucose metabolism, and its deficiency can lead to hypoglycemia (low blood glucose levels). If blood glucose levels are decreasing, it may indicate inadequate glucocorticoid replacement therapy, suggesting the therapy is not fully effective.
Choice C reason:
Decreasing serum chloride levels would not be expected in a patient with Addison’s disease who is receiving proper treatment. Chloride is regulated alongside sodium and is influenced by aldosterone. In Addison's disease, aldosterone deficiency leads to a decreased ability to retain sodium, which in turn can affect chloride levels. However, a decrease in chloride levels alone is not a clear sign of effective therapy. Normalization of serum sodium levels is a better indicator of treatment success.
Choice D reason:
Increasing serum sodium levels is the correct finding that indicates effective therapy in a patient with Addison’s disease. In this condition, aldosterone deficiency results in sodium loss through the kidneys, leading to hyponatremia (low sodium levels). Effective therapy, which typically involves the administration of glucocorticoids and mineralocorticoids (such as fludrocortisone), helps to correct this imbalance by increasing sodium retention and normalizing serum sodium levels. This would demonstrate that the current therapies are working to restore the electrolyte balance.
Correct Answer is D
Explanation
Choice A reason: "It must have been from sharing needles with my roommate." This statement is incorrect because hepatitis A is not typically transmitted through sharing needles. Hepatitis A is primarily spread through the fecal-oral route, which involves ingestion of contaminated food or water.
Choice B reason: "It is likely transmitted through kissing or sexual activity." This statement is also incorrect. Hepatitis A is not commonly spread through kissing or sexual activity. It is mainly transmitted through consuming contaminated food or water or close contact with an infected person.
Choice C reason: "I think I caught it because I have a family history of liver problems." This statement reflects a misunderstanding of how hepatitis A is transmitted. Hepatitis A is not linked to genetic predisposition or family history of liver problems. It is an infectious disease spread through the fecal-oral route.
Choice D reason: "I probably got it from drinking contaminated water or eating food handled by someone who didn't wash their hands properly." This statement is correct and indicates an accurate understanding of how hepatitis A is transmitted. The virus is often spread through consumption of contaminated food or water, particularly in areas with poor sanitation.
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