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Comprehensive metabolic and renal function panel with electrolytes and creatinine (serum/plasma)

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

This test measures key blood and fluid chemistry values to assess kidney function, electrolyte balance, and overall metabolic health—important before restarting dialysis after a transplant failure.

Quick summary

Your blood chemistry helps ensure your body stays stable before dialysis begins.

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

Key facts at a glance

LOINC
64335-3
Short code
HOMEPATIENTSRESTARTINGDIALYSISAFTERFAILEDTRANSPLANTATION
Synonyms
—
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
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 Matters for Dialysis Preparation

Restarting dialysis after a transplant failure requires careful monitoring of how your kidneys and body handle fluids, electrolytes, and waste products. This panel helps doctors determine if your kidneys are functioning adequately or if immediate dialysis support is needed. It also checks for imbalances like high or low potassium, sodium, or phosphorus that could be dangerous before starting dialysis.

What the Test Measures

This test includes measurements of electrolytes (such as sodium, potassium, chloride), kidney function markers (like creatinine), and other blood chemistry indicators. Some tests may also check for glucose, calcium, and bicarbonate levels to evaluate hydration, acid-base balance, and overall metabolic health.

Common Tests Included

While the exact tests vary by lab, you may see measurements such as serum creatinine, blood urea nitrogen (BUN), sodium, potassium, chloride, calcium, phosphorus, and glucose. Some labs may also include bicarbonate or other markers depending on clinical needs.

What This Test Can’t Tell You

This test does not directly assess kidney function beyond creatinine and BUN. It also cannot detect specific causes of kidney failure or transplant rejection. If your doctor suspects a problem, additional tests may be needed.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance for Dialysis Patients

Short name

None

Frequently asked questions

What could cause abnormal results in this test?
Abnormal results may indicate kidney dysfunction, electrolyte imbalances, dehydration, or metabolic issues. High creatinine or BUN levels often mean kidneys aren’t filtering waste properly, while low sodium or high potassium could signal fluid or heart problems. Your doctor will use these results to guide whether you need dialysis immediately or if your kidneys can stabilize first.
How will my results affect my dialysis plan?
Your results will help your healthcare team decide if you’re ready for dialysis. If levels are dangerously out of balance, dialysis may start sooner. If levels are stable, they might wait to restart dialysis until your body recovers more. Always follow your doctor’s specific plan.
Do I need to prepare for this test?
You may need to avoid certain medications (like NSAIDs) or foods (like salt) for a day before testing. Follow your doctor’s instructions carefully, as fasting or hydration status can affect 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