what lab value normally elevates with chronic iron deficiency?\na) hgb\nb) ferritin\nc) tibc\nd) hct
what lab value normally elevates with chronic iron deficiency?\na) hgb\nb) ferritin\nc) tibc\nd) hct
Answer
Brief Explanations:
- Hgb (Hemoglobin): Decreases in iron - deficiency anemia as it is made with iron.
- Ferritin: Reflects iron stores. In chronic iron deficiency, ferritin levels decrease (not increase) as the body's iron stores are depleted.
- TIBC (Total Iron - Binding Capacity): TIBC measures the blood's capacity to bind iron. In chronic iron deficiency, the body tries to compensate for low iron levels by increasing the number of transferrin receptors (TIBC is related to transferrin). So, TIBC elevates.
- HCT (Hematocrit): Similar to Hgb, hematocrit decreases in iron - deficiency anemia as the number of red blood cells (which contain iron - rich hemoglobin) is reduced.
Answer:
C. TIBC