Anna, 45, presents with lymphadenopathy and an abnormal CBC. The healthcare provider orders flow cytometry. What is the primary reason for using flow cytometry in Anna's case?

To identify and classify leukemic cells

To count red blood cells

To assess kidney function

To measure plasma electrolytes

Answer and Explanation

The Correct Answer is A

A.   Flow cytometry is commonly used in the diagnosis and classification of leukemias and lymphomas by analyzing the cellular characteristics of blood or tissue samples.
B.   Flow cytometry can be used for cell counting, but it is not the primary reason for using it in Anna's case.
C.   Flow cytometry is not typically used to assess kidney function. Other tests such as serum creatinine and urine analysis are more commonly used for this purpose.
D.   Flow cytometry does not measure plasma electrolytes. Electrolyte measurements are typically done through blood tests like basic metabolic panels.

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Correct Answer is C

Explanation

A. Transversus thoracis is involved in expiration rather than inspiration.

B. Internal intercostals primarily aid in forced expiration.

C. The diaphragm contracts and moves downward during inspiration, increasing the vertical dimensions of the thoracic cavity and allowing air to enter the lungs.
D. External intercostals help elevate the ribs during inspiration but do not contribute significantly to increasing the vertical dimensions of the thoracic cavity.

A. Left-sided hemiparesis and dilated right pupil B. Right-sided hemiparesis and dilated right pupil C. Bilateral handgrip strength is equal and reactive pupils D. Pupils are pinpoint but reactive

Correct Answer is A

Explanation

A. Right intracerebral hemorrhage typically causes symptoms on the opposite side of the body (left-sided hemiparesis) and a dilated ipsilateral (right) pupil due to pressure on the oculomotor nerve.
B. Right intracerebral hemorrhage typically results in left-sided hemiparesis due to damage to the motor pathways on the right side of the brain, along with a dilated right pupil due to compression of the ipsilateral (right) oculomotor nerve.
C. Bilateral handgrip strength being equal suggests no focal motor deficits, which would be unusual in the context of an intracerebral hemorrhage. Reactive pupils would not be expected in this scenario.
D. Pinpoint pupils are typically associated with opioid overdose or pontine lesions, not intracerebral hemorrhage.

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Anna, 45, presents with lymphadenopathy and an abnormal CBC. The healthcare provider orders flow cytometry. What is the primary reason for using flow cytometry in Anna's case?

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Naxlex Comprehensive Predictor Exams

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Correct Answer is C

Explanation

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Correct Answer is A

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