Your patient has Iron deficiency anemia because of their pica. Which of the following lab results is EXPECTED in this condition?
High serum Iron and Low MCV
High serum Iron and Mean Corpuscular Volume (MCV)
High Total Iron Binding Capacity: Low serum Iron and MCV
None of the above
The Correct Answer is C
A. In iron deficiency anemia, serum iron levels are typically low due to a deficiency in iron. Additionally, the Mean Corpuscular Volume (MCV) is often low because the red blood cells produced are smaller than normal (microcytic).
B. Similar to option A, serum iron levels in iron deficiency anemia would be low, not high. The MCV may be low or normal, but it would not be high due to the production of microcytic red blood cells.
C. In iron deficiency anemia, TIBC is usually high because the body is trying to maximize iron transport in response to low iron levels. Serum iron is low, and the MCV is low due to the production of smaller red blood cells.
D. This option is incorrect because option C accurately describes the expected lab results in iron deficiency anemia.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Neutrophils are the most abundant type of WBC and are primarily involved in responding to bacterial infections. While they may increase during a viral infection, their primary function is to combat bacteria and fungi. Therefore, they are not the most specific indicator of viral illnesses.
B. Lymphocytes, which include T cells and B cells, are the most directly associated with viral infections. They play a crucial role in the adaptive immune response, recognizing and responding to viral pathogens. A significant increase in lymphocytes, particularly T cells, is commonly seen during viral infections.
C. Basophils are involved in allergic reactions and responses to parasites, releasing histamine and other mediators. They are not significantly involved in the response to viral infections and typically do not show a notable increase in these situations.
D. Eosinophils primarily respond to parasitic infections and allergic reactions. While they may be elevated in some allergic conditions and certain parasitic infections, they are not directly involved in the immune response to viral infections.
Correct Answer is B
Explanation
A. A positive ketone result indicates the presence of ketones in the urine, which can occur in conditions such as diabetes, fasting, or starvation. It is not indicative of a UTI.
B. A positive leukocyte esterase test indicates the presence of white blood cells (WBCs) in the urine, suggesting inflammation or infection, commonly associated with a UTI. This enzyme is released by WBCs, making it a key marker for infections.
C. The presence of crystals in the urine can indicate various conditions, including kidney stones or metabolic disorders, but it is not a specific marker for a UTI.
D. Hyaline casts may appear in the urine in response to dehydration or concentrated urine but are not specific to urinary tract infections. They can be seen in various renal conditions and do not indicate infection.
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