Amputeecorrectionfactoribvpatientcalc
A calculation that adjusts blood test results for patients with amputations to account for their reduced blood volume.
{"This test calculates an adjustment factor for blood test results in amputee patients","It helps healthcare providers get accurate results by accounting for reduced blood volume after amputation","The calculation determines ideal blood volume based on the patient's original body size","Results help interpret other blood tests correctly","No special sample collection is needed—the calculation uses existing measurements"}
Key facts at a glance
- LOINC
- 111540-1
- Short code
- Amputee correction factor/IBV Patient Calc
- Synonyms
- Amputee correction factor/IBV Patient Calc
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- calculated
- 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 is this test?
The Amputee Correction Factor test is a mathematical calculation that helps healthcare providers interpret blood test results more accurately for patients who have had amputations. When someone loses a limb, their total blood volume decreases. This reduction can affect the concentration of various substances in the blood, potentially making test results appear abnormal when they are actually normal for that patient's reduced blood volume.
How does the calculation work?
The test uses information about the patient's height, weight, and the type and level of amputation to calculate their ideal blood volume (what their blood volume would have been without the amputation). This ideal value is then compared to their actual current blood volume to determine a correction factor. This factor is applied to other blood test results to get a more accurate picture of the patient's health status.
Why is it important for amputee patients?
Without this correction, blood test results in amputee patients could be misleading. For example, certain substances in the blood might appear to be at higher or lower concentrations simply because there is less blood volume, not because of any medical condition. This test ensures that healthcare providers can distinguish between normal physiological changes due to amputation and actual medical problems.
How is the sample collected?
This is not a separate blood draw test. Instead, it is a calculation performed using information from your medical records (including your amputation details) and measurements from other blood tests. Your healthcare provider will input this information into a formula to calculate the correction factor.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
◆Associated findings2
Frequently asked questions
Will I need to give an extra blood sample for this test?
How do I prepare for this test?
Is this test only for certain types of amputations?
How often will I need this calculation done?
Can I see the correction factor results?
Sources
- 1
- 2
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