Certified Surgical First Assistant (CSFA) Practice Test

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What can vitamin D deficiency lead to?

Hypertension
Osteoporosis
Hypocalcemia
Anemia

The correct answer is: Hypocalcemia

Vitamin D deficiency significantly impacts the body's ability to absorb calcium, leading to hypocalcemia, which is characterized by low levels of calcium in the blood. Vitamin D plays a crucial role in maintaining calcium and phosphate balance in the body, facilitating proper bone mineralization and overall health. When vitamin D levels are insufficient, the intestinal absorption of calcium drops, potentially resulting in hypocalcemia. As for the other options, hypertension may be influenced by various factors, such as diet and lifestyle, but is not directly caused by vitamin D deficiency. Osteoporosis, while also related to calcium and bone health, often arises from a combination of factors, including age, sex, and hormonal levels, rather than solely from a lack of vitamin D. Anemia is primarily associated with deficiencies in iron, vitamin B12, or folate, and not typically linked to vitamin D status. Thus, hypocalcemia is the most direct and relevant consequence of insufficient vitamin D levels, reinforcing the nutrient's crucial role in calcium metabolism and bone health.