A vitamin D level below 20 ng/mL indicates what status?

A vitamin D level below 20 ng/mL indicates what status?

• A. Vitamin D insufficiency
• B. Vitamin D sufficiency
• C. Vitamin D toxicity
• D. Vitamin D deficiency

Answer: (D)

Serum 25-hydroxyvitamin D level is used to determine vitamin D status. A level below 20 ng/mL indicates vitamin D deficiency, meaning there isn’t enough vitamin D to support calcium balance and bone health, increasing the risk for fractures and bone-softening conditions. Levels around 20–29 ng/mL are considered insufficient, while 30 ng/mL or higher is generally viewed as sufficient. Very high levels can indicate toxicity, which is not the situation here.

Serum 25-hydroxyvitamin D level is used to determine vitamin D status. A level below 20 ng/mL indicates vitamin D deficiency, meaning there isn’t enough vitamin D to support calcium balance and bone health, increasing the risk for fractures and bone-softening conditions. Levels around 20–29 ng/mL are considered insufficient, while 30 ng/mL or higher is generally viewed as sufficient. Very high levels can indicate toxicity, which is not the situation here.