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Cardio IQ Vitamin D, 25-Hydroxy
Quest Diagnostics1 test optionFrom $49.29
Cardio IQ Vitamin D, 25-Hydroxy
Quest DiagnosticsCatalog information reviewed: August 24, 2026 by the Sunridge Medical clinical team.
What this laboratory test evaluates
Cardio IQ® Vitamin D, 25-Hydroxy
This test measures the levels of Vitamin D in your body, which is crucial for bone health. It's especially useful for people without kidney disease. Low levels of Vitamin D can lead to bone issues like rickets in children and osteomalacia in adults, while high levels can cause hypercalcemia. This test specifically looks at two forms of Vitamin D: 25OH D3 (the type your body makes) and 25OH D2 (a form used to treat Vitamin D deficiency).
What patients is this test right for?This test is recommended if you might have Vitamin D deficiency or excess, which can affect bone health and calcium levels.
Low Vitamin D Symptoms:• Bone pain and weakness
• Muscle weakness
• Higher risk of fractures
• Children might develop rickets
• Adults might develop osteomalacia
What type of sample is required for this test?0.5 mL serum.
Test ResourcesFor more information on Vitamin D and its importance, you might find these resources helpful.
Additional test information
Cardio IQ® Vitamin D, 25-Hydroxy – This test measures the levels of Vitamin D in your body, which is crucial for bone health. It's especially useful for people without kidney disease. Low levels of Vitamin D can lead to bone issues like rickets in children and osteomalacia in adults, while high levels can cause hypercalcemia. This test specifically looks at two forms of Vitamin D: 25OH D₃ (the type your body makes) and 25OH D₂ (a form used to treat Vitamin D deficiency).
Collection and processing
- Sample type: Serum
- Fasting: No
- Estimated laboratory processing: Results should be available in 2 – 5 business days after the sample is collected
How Sunridge uses laboratory information
Sunridge considers the medical question, symptoms, history, medications, prior results, and whether the finding could change care before recommending testing. A laboratory result is not interpreted in isolation and does not establish a diagnosis by itself.
Before requesting this test
Availability, collection requirements, eligibility, and processing estimates can change. Sunridge reviews each request and, when appropriate, creates the order through Fullscript. Follow the current instructions supplied with the approved order.
Common questions about this laboratory test
- What sample does this test require?
- The listed sample type is Serum. Confirm current collection instructions in the approved order.
- Does this test require fasting?
- The current catalog record lists fasting as: No. Follow the instructions supplied with the approved order.
- How long does laboratory processing usually take?
- Results should be available in 2 – 5 business days after the sample is collected. Timing can change after collection or if a laboratory requires additional review.
About this test
Cardio IQ® Vitamin D, 25-Hydroxy
This test measures the levels of Vitamin D in your body, which is crucial for bone health. It's especially useful for people without kidney disease. Low levels of Vitamin D can lead to bone issues like rickets in children and osteomalacia in adults, while high levels can cause hypercalcemia. This test specifically looks at two forms of Vitamin D: 25OH D3 (the type your body makes) and 25OH D2 (a form used to treat Vitamin D deficiency).
What patients is this test right for?This test is recommended if you might have Vitamin D deficiency or excess, which can affect bone health and calcium levels.
Low Vitamin D Symptoms:• Bone pain and weakness
• Muscle weakness
• Higher risk of fractures
• Children might develop rickets
• Adults might develop osteomalacia
What type of sample is required for this test?0.5 mL serum.
Test ResourcesFor more information on Vitamin D and its importance, you might find these resources helpful.
Additional details
Cardio IQ® Vitamin D, 25-Hydroxy - This test measures the levels of Vitamin D in your body, which is crucial for bone health. It's especially useful for people without kidney disease. Low levels of Vitamin D can lead to bone issues like rickets in children and osteomalacia in adults, while high levels can cause hypercalcemia. This test specifically looks at two forms of Vitamin D: 25OH D₃ (the type your body makes) and 25OH D₂ (a form used to treat Vitamin D deficiency).
Highlighted health areas
- Cardiovascular
- Bone/Joint
- Immune System
- Nutrition
Biomarkers and report focus
The exact analytes and report format can change. Confirm the current contents in the Fullscript order before payment.
- Vitamin D, 25-OH, Total
- 25-OH Hydroxy Vitamin D (Cholecalciferol D3)
- 25-OH Hydroxy Vitamin D (Ergocalciferol D2)