A 13-Year-Old Boy Presents with the Following Hematologic Results: RBC

question 6

Multiple Choice

A 13-year-old boy presents with the following hematologic results: RBC = 5.76 million, Hb, 10.4 g/dL; Hct, 35.9%; MCV (mean corpuscular volume) , 63 fL: MCH (mean corpuscular hemoglobin) , 18.2 pg; MCHC (mean corpuscular hemoglobin concentration) , 29%; and RDW (red blood cell distribution width) , 13.5. Morphology includes mild anisocytosis and occasional target cells. All iron studies are normal. Electrophoresis on cellulose acetate at pH 8.4 indicates an increase in HbF and HbA₂. What thalassemia syndrome is evident?

• A) αα-thalassemia
• B) ββ-thalassemia
• C) Hemoglobin E disease
• D) Sideroblastic anemia
• E) None of the above

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Definitions:

Sensory Neurons

Neurons that transmit sensory information from the body to the central nervous system for interpretation.

Afferent Nerves

Nerves that carry sensory information from the body's periphery towards the central nervous system.

HNP

Herniated Nucleus Pulposus; a condition where the soft center of a spinal disc pushes through a crack in the tougher exterior casing.

Analgesia

A state where pain is reduced or absent, which may be achieved through various medications or techniques.