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Hepatic Function Screening Panel (Electrolyte Profile)

Published: August 9, 2026Updated: August 16, 2026

This test measures key electrolytes and related substances in your blood to assess kidney function, fluid balance, and liver metabolism.

Quick summary

["Checks essential health markers that support kidney and liver function."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
47240-7
Short code
Date eligible to start HIV Rx
Synonyms
Date eligible to start HIV Rx
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
reported
CPT
86701
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 to evaluate how well your kidneys filter waste products, balance electrolytes like sodium and potassium, and monitor liver health. It can also help diagnose conditions such as dehydration, kidney disease, or metabolic imbalances.

What to Expect Before the Test

No special preparation is needed, but you may be asked to fast for 8–12 hours before the test if serum/plasma is required. Bring your medical records or recent test results if instructed. Avoid heavy meals or alcohol before testing.

What Happens During the Test

A healthcare professional will draw blood from a vein in your arm. The process usually takes a few minutes. You may feel slight discomfort, but it’s temporary. The blood sample is sent to a lab for analysis.

What the Results Mean

Results may include measurements for electrolytes (e.g., sodium, potassium), creatinine (a waste product filtered by kidneys), and other substances like urea or liver-related markers. Abnormal levels can signal kidney dysfunction, fluid imbalance, or liver issues. Your provider will interpret results in the context of your overall health.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance

Frequently asked questions

What does an abnormal result indicate?
Abnormal electrolyte levels (e.g., low potassium or high sodium) may suggest dehydration, kidney problems, or heart-related conditions. Elevated creatinine or urea could indicate impaired kidney function. Liver-related markers may reveal inflammation, infection, or metabolic disorders. Always discuss results with your provider.
How often should I get this test?
Frequency depends on your health status. Routine adults may not need this test unless advised by a provider. People with kidney/liver conditions, heart disease, or those on certain medications may need more frequent monitoring.
Can I eat or drink before the test?
If fasting is required, avoid food for 8–12 hours before the blood draw. Water is usually allowed unless otherwise instructed. Follow your provider’s specific guidelines to ensure accurate results.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

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.

Medical Disclaimer

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