Serum Creatinine with Rapid Measurement (for Dialysis Monitoring)
This test measures the amount of creatinine, a waste product from muscle metabolism, in your serum. It helps assess kidney function and is often used in dialysis patients to monitor how well their kidneys are filtering blood.
["A creatinine test helps track kidney health and adjust dialysis settings to keep your blood clean and healthy."]
Key facts at a glance
- LOINC
- 106736-2
- Short code
- CRP SerPlBld IA.rapid-mCnc
- Synonyms
- CRP SerPlBld IA.rapid-mCnc
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Ref low
- 0
- Ref high
- 3
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- ia-rapid
- CPT
- 86140
- 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
Why This Test Is Done
Your healthcare provider may order this test if you’re on dialysis to ensure your kidneys are working as expected. Rapid testing helps quickly check levels before or after dialysis sessions, helping prevent buildup of waste products that could harm your body.
What to Expect Before the Test
No special preparation is needed. You’ll have a small needle inserted into a vein (usually in your arm) to draw a blood sample. The process takes just a few minutes, and you can return to your normal activities afterward.
What the Results Mean
Creatinine levels can vary based on muscle mass, hydration status, and kidney function. Your results will be compared to a reference range provided by your doctor to determine if your kidneys are filtering blood properly.
Common Causes of Abnormal Results
High creatinine levels may indicate poor kidney function, dehydration, or conditions like heart disease or muscle disorders. Low levels might suggest overhydration or rare genetic factors. Your doctor will discuss these findings with you.
Reference range
Normal: <3.0 mg/LN/A
No special preparation required. CRP may be affected by acute illness.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Clinical Significance
Short name
Serum Creatinine (Rapid Dialysis Check)
Frequently asked questions
How often should I get this test?
What if my results are outside the normal range?
Can diet affect this 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