Creatinine

ChemistryAlso known as: Creatinine (serum)Also known as: Creatinine (plasma)g/(8.h)

Measures creatinine in serum or plasma to assess kidney filtration function.

Normal Range
0.6 – 2.4 g/(8.h)
g/(8.h)
Abnormal Levels
Consult your provider
Specimen Type
Blood

Why This Biomarker Matters

Creatinine levels indicate kidney function; abnormal results signal reduced filtration capacity, guiding treatment to slow kidney disease progression.

Understanding Your Results

Normal Range

0.6 – 2.4 g/(8.h)

Overview

Creatinine is a waste product produced by muscle metabolism and filtered by the kidneys into urine. This test measures creatinine in an 8-hour urine collection and reflects kidney filtration function. Creatinine levels help assess kidney health and are often used to calculate glomerular filtration rate (GFR), which indicates how well your kidneys filter waste. Low creatinine output may suggest reduced muscle mass or kidney disease, while the ratio of protein to creatinine helps assess kidney protein loss. This test is frequently ordered in patients with diabetes, high blood pressure, or known kidney disease.

Related Health Conditions

Conditions where Creatinine is commonly tested

Bipolar disorder

Chronic kidney disease

Diabetes mellitus type II

Essential hypertension

Heart failure

Hyperkalemia

Hypokalemia

Hyponatremia

Proteinuria

Related Health Goals

Improve Cardiovascular Fitness

Improve Heart Health

Improve Kidney Health

Monitor Blood Sugar

Optimize Electrolyte Balance

Optimize Metabolic Function

Support Mental Wellness

Treatments & Interventions

Therapies monitored using Creatinine

Valproate semisodium

Chlorothiazide sodium

Potassium chloride

Maprotiline hydrochloride

Trichlormethiazide

Deslanoside

Hydralazine hydrochloride

Esmolol hydrochloride

Cyclothiazide

Quinethazone

Enalaprilat

Labetalol hydrochloride

Potassium acetate

Methotrimeprazine hydrochloride

Amrinone lactate

Clinical Trials

953
Total Trials
114
Recruiting
289
With Results

Recent Trials

Family Investigation of Nephropathy and Diabetes (F.I.N.D.)

NCT00342927Recruiting100,000 enrolled

A Study of Cardiovascular Events iN Diabetes Plus

NCT05441267Phase 4Recruiting20,000 enrolled

A Pragmatic Trial Comparing Empagliflozin and Dapagliflozin Through Cluster Randomization Embedded in the Electronic Health Record

NCT06642272Phase 4Recruiting17,200 enrolled

EASi-PROTKT™ - A Study to Test Vicadrostat (BI 690517) Taken Together With Empagliflozin in People With Type 2 Diabetes, High Blood Pressure, and Cardiovascular Disease

NCT07064473Phase 3Recruiting11,800 enrolled

Intervention for High-normal Blood Pressure in Adults With Type 2 Diabetes

NCT03264352Phase 4Recruiting11,414 enrolled
View all 953 trials on ClinicalTrials.gov

Technical Information (LOINC Codes)

Standardized laboratory codes for this biomarker

103616-9Primary
Creatinine [Moles/volume] in Serum or Plasma by LC/MS/MS
umol/L
20624-3
Creatinine [Mass/volume] in 24 hour Urine
mg/dL
2159-2
Creatinine [Mass/volume] in Amniotic fluid
mg/dL
38483-4
Creatinine [Mass/volume] in Blood
mg/dL
12190-5
Creatinine [Mass/volume] in Body fluid
mg/dL
2160-0
Creatinine [Mass/volume] in Serum or Plasma
mg/dL
2161-8
Creatinine [Mass/volume] in Urine
mg/dL
35674-1
Creatinine [Mass/volume] in Urine collected for unspecified duration
mg/dL
12588-0
Creatinine [Mass/time] in 8 hour Urine
g/(8.h)
12585-6
Creatinine [Mass/time] in 2 hour Urine
g/(2.h)
57726-2
Creatinine [Mass/volume] in 24 hour Peritoneal dialysis fluid
mg/dL
31101-9
Creatinine [Mass/time] in 24 hour Body fluid
g/(24.h)
12586-4
Creatinine [Mass/time] in 4 hour Urine
g/(4.h)
57346-9
Creatinine [Mass/volume] in 12 hour Urine
mg/dL
12584-9
Creatinine [Mass/volume] in Vitreous fluid
mg/dL
25886-3
Creatinine [Moles/volume] in 24 hour Urine
umol/L
30004-6
Creatinine [Mass/volume] in Urine by Test strip
mg/dL
12589-8
Creatinine [Mass/time] in 12 hour Urine
g/(12.h)
72821-2
Creatinine [Mass/time] by Calculated in Urine collected for unspecified duration
mg/(24.h)
5919-6
Creatinine [Mass/volume] in Dialysis fluid
mg/dL
35262-5
Creatinine [Mass or Moles] in 24 hour Urine
22726-4
Creatinine [Moles/volume] in Specimen
umol/L
12191-3
Creatinine [Mass/volume] in Peritoneal fluid
ug/L
21232-4
Creatinine [Mass/volume] in Arterial blood
mg/dL
55593-8
Creatinine [Moles/volume] in Urine collected for unspecified duration
umol/L
14683-7
Creatinine [Moles/volume] in Urine
mmol/L
14684-5
Creatinine [Moles/time] in 24 hour Urine
mmol/(24.h)
14682-9
Creatinine [Moles/volume] in Serum or Plasma
umol/L
59826-8
Creatinine [Moles/volume] in Blood
umol/L
2162-6
Creatinine [Mass/time] in 24 hour Urine
g/(24.h)
15051-6
Creatinine [Moles/volume] in Dialysis fluid
umol/L
30002-0
Creatinine [Moles/volume] in Urine by Test strip
umol/L
15050-8
Creatinine [Moles/volume] in Amniotic fluid
umol/L
32543-1
Creatinine [Molar amount] in Urine collected for unspecified duration
mmol
33798-0
Creatinine [Moles/time] in 2 hour Urine
umol/(2.h)
101475-2
Creatinine [Moles/volume] in Venous blood
umol/L
14681-1
Creatinine [Moles/volume] in Peritoneal dialysis fluid
umol/L
39471-8
Creatinine [Moles/volume] in 24 hour Peritoneal dialysis fluid
umol/L
39472-6
Creatinine [Moles/volume] in 24 hour Dialysis fluid
umol/L
39473-4
Creatinine [Moles/volume] in 72 hour Urine
mmol/L
39474-2
Creatinine [Moles/volume] in Peritoneal fluid
umol/L
40356-8
Creatinine [Moles/time] in 24 hour Dialysis fluid
umol/(24.h)
40357-6
Creatinine [Moles/time] in 24 hour Body fluid
umol/(24.h)
44784-7
Creatinine [Mass/volume] (Maximum value during study) in Serum or Plasma
mg/dL
47610-1
Creatinine [Moles/volume] in Stool
umol/L
48790-0
Creatinine [Mass/time] in unspecified time Peritoneal dialysis fluid
49004-5
Creatinine [Mass/volume] in Peritoneal dialysis fluid
mg/dL
51592-4
Creatinine [Moles/time] in 12 hour Urine
mmol/(12.h)
53120-2
Creatinine [Moles/time] in 1 hour Urine
mmol/h
53499-0
Creatinine [Moles/volume] in 12 hour Urine
umol/L
54375-1
Creatinine [Moles/volume] in Pleural fluid
umol/L
14402-2
Creatinine [Mass/volume] in Gastric fluid
mg/dL
57344-4
Creatinine [Mass/volume] in 2 hour Urine
mg/dL
14401-4
Creatinine [Mass/volume] in Synovial fluid
mg/dL
14399-0
Creatinine [Mass/volume] in Pleural fluid
mg/dL
58998-6
Creatinine [Mass/time] in 18 hour Urine
mg/(18.h)
14398-2
Creatinine [Mass/volume] in Cerebral spinal fluid
mg/dL
60518-8
Creatinine [Moles/time] in 24 hour Stool
mmol/(24.h)
12587-2
Creatinine [Mass/time] in 6 hour Urine
g/(6.h)
75363-2
Creatinine [Moles/volume] in Vitreous fluid
umol/L
77140-2
Creatinine [Moles/volume] in Serum, Plasma or Blood
umol/L
93733-4
Creatinine [Mass/time] in 5 hour Urine
g/(5.h)
93734-2
Creatinine [Moles/time] in 5 hour Urine
mmol/(5.h)
93735-9
Creatinine [Moles/volume] in 5 hour Urine
mmol/L
94844-8
Creatinine [Mass/volume] in Urine from Fetus
mg/dL
96590-5
Creatinine [Mass/volume] in DBS
mg/dL
20511-2
Creatinine [Interpretation] in Urine
99384-0
Creatinine [Moles/time] in 6 hour Urine
mmol/(6.h)
16690-0
Creatinine [Mass/time] in 72 hour Urine
g/(72.h)
16689-2
Creatinine [Mass/time] in 48 hour Urine
g/(48.h)
25386-4
Creatinine [Moles/volume] in Body fluid
umol/L

Available Lab Tests

Order tests that measure this biomarker

Adrenal Complete

$340.56

Advanced Cardiovascular Health Basic

$132.55

Advanced Cardiovascular Health Comprehensive

$526.57

Advanced Liver Health Basic

$293.92

Advanced Liver Health Comprehensive

$1044.34

Albumin Urine Test with Creatinine

$38.56
Results in 1-2 business days

Aspirin Resistance 11 Dehydrothromboxane B2

$130.74

Cancer Tumor Markers Men Basic

$71.57

Catecholamines Fractionated Random Urine Test

$88.00

Collagen Cross Linked N Telopeptide 24 Hour Urine Test

$123.00

Comprehensive Metabolic Panel (CMP)

$15.79
Results in Same day to 1 business day

Creatine 24 Hour Urine Test

$43.08

Creatinine Clearance

$30.58

Magnesium 24 Hour Urine Test with Creatinine

$38.39

Urinary Organic Acids

$586.08
Results in 7-14 business days

Find Specialists

Doctors who commonly order this test

Family Medicine
Internal Medicine
Cardiovascular Disease
Endocrinology, Diabetes & Metabolism
Hypertension Specialist
Nephrology
Psychiatry
Creatinine: Normal Range, Testing & Clinical Significance | Healos | Healos