24-Hour Calcium Intake Protocol (Qualitative Assessment)
This test evaluates your total calcium intake over a 24-hour period by analyzing dietary records and, if applicable, blood or urine samples for metabolic markers.
["Understanding your calcium intake helps identify dietary habits or deficiencies that may affect bone health or other bodily functions."]
Key facts at a glance
- LOINC
- 62289-4
- Short code
- PhenX - calcium intake - adult protocol
- Synonyms
- PhenX - calcium intake - adult protocol
- Category
- electrolyte
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Ref low
- 8.5
- Ref high
- 10.5
- Critical range
- 6 N/A – 14 N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- phenx
- CPT
- 82310
- SNOMED
- 110744001
- Specimen volume
- 5 mL
- Stability
- Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
- Hemolysis max
- 500
- Lipemia max
- 1000
- Icterus max
- 500
- TAT
- 4–24 hours
- Order
- routine
What This Test Measures
The test combines a dietary assessment (24-hour calcium intake record) with optional blood or urine tests to measure how your body processes calcium. It may include qualitative analysis of calcium absorption markers or metabolic byproducts, depending on the protocol.
Why It’s Done
Your healthcare provider may recommend this test if you have symptoms like muscle weakness, bone pain, or if you’re at risk for calcium-related conditions (e.g., osteoporosis, kidney stones). It helps determine whether dietary habits or absorption issues are contributing to your health concerns.
Sample Collection Process
For the dietary portion, you’ll track all calcium-containing foods and beverages you consume over 24 hours, including supplements. For metabolic markers (if included), a blood or urine sample may be taken at a specific time (e.g., fasting or post-meal).
Preparation and Timing
Follow your provider’s instructions carefully. For dietary records, keep a detailed log of everything you eat/drink. If blood/urine samples are part of the protocol, avoid certain foods/drinks (e.g., calcium-rich meals) for 12–24 hours beforehand to ensure accuracy.
Reference range
Adult: 8.5-10.5 mg/dLN/A
No special preparation required. Stay well hydrated.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Clinical Significance
Frequently asked questions
What Does a Positive or Abnormal Result Mean?
How Often Should I Get This Test?
Can I Adjust My Diet Before the Test?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy