Leukocytes
HematologyAlso known as: White blood cell countAlso known as: WBCAlso known as: Leukocyte count10*3/uL
Counts white blood cells in synovial fluid from joints.
Normal Range
0 – 100 10*3/uL
10*3/uL
Abnormal Levels
Consult your provider
Specimen Type
Blood
Why This Biomarker Matters
Elevated WBC in joint fluid indicates infection or inflammation. This test helps diagnose serious joint conditions like septic arthritis or inflammatory arthritides.
Understanding Your Results
Normal Range
0 – 100 10*3/uL
Overview
White blood cells (WBCs or leukocytes) are immune cells that fight infections and protect your body. This test measures WBC count in synovial fluid (fluid surrounding joints). Elevated WBC in joint fluid suggests infection, inflammation, or autoimmune disease affecting that joint. Very high counts may indicate septic arthritis (bacterial infection), while moderate elevation could indicate rheumatoid arthritis or other inflammatory joint conditions. This specialized test helps diagnose the cause of joint pain or swelling.
Related Health Conditions
Conditions where Leukocytes is commonly tested
Related Health Goals
Treatments & Interventions
Therapies monitored using Leukocytes
Clinical Trials
373
Total Trials
47
Recruiting
116
With Results
Recent Trials
Role of Genetic Factors in the Development of Lung Disease
NCT00001532Recruiting3,500 enrolled
Individualizing Treatment for Asthma in Primary Care (Full Study)
NCT07052942Phase 4Recruiting3,200 enrolled
CHEST: A Collaboration With Community HEalth Centers to Implement SmarT for Asthma
NCT07241117Phase 4Recruiting2,000 enrolled
Study Assessing the Long-term Effect of Dupilumab on Prevention of Lung Function Decline in Adult Patients With Uncontrolled Moderate to Severe Asthma
NCT05097287Phase 4Recruiting1,324 enrolled
Activation and Function of Eosinophils in Conditions With Blood or Tissue Eosinophilia
NCT00001406Recruiting800 enrolled
Technical Information (LOINC Codes)
Standardized laboratory codes for this biomarker
26464-8PrimaryLeukocytes [#/volume] in Blood
10*3/uL
6690-2Leukocytes [#/volume] in Blood by Automated count
10*3/uL
13349-6Leukocytes [#/volume] in Stool by Manual count
/mL
13655-6Leukocytes [Presence] in Stool by Light microscopy
813-6Leukocytes [#/volume] in Synovial fluid by Automated count
10*3/uL
45383-7Leukocytes [#/area] in Urine sediment by Microscopy low power field
/[LPF]
811-0Leukocytes [#/volume] in Semen by Automated count
10*3/uL
49928-5Leukocytes [#/volume] in Peritoneal dialysis fluid
10*3/uL
807-8Leukocytes [#/volume] in Pleural fluid by Automated count
10*3/uL
49498-9Leukocytes [#/volume] in Blood by Estimate
10*3/uL
51770-6Leukocytes [#/area] in Stool by Microscopy high power field
/[HPF]
44092-5Leukocytes [#/area] in Vaginal fluid by Wet preparation
12224-2Leukocytes [#/area] in Nose by Microscopy high power field
/[HPF]
14811-4Leukocytes [#/volume] in Pericardial fluid by Manual count
/uL
34445-7Leukocytes [Presence] in Body fluid
34469-7Leukocytes [Presence] in Bile fluid by Light microscopy
11157-5Leukocytes [Morphology] in Bone marrow
812-8Leukocytes [#/volume] in Semen by Manual count
10*3/uL
63555-7Leukocytes [#/volume] by Microscopy high power field in Urine sediment collected for unspecified duration
10*3/uL
24122-4Leukocytes [#/volume] in Urine by Manual count
/uL
53316-6Leukocytes [Presence] in Urine by Automated
14328-9Leukocytes [Presence] in Sputum by Light microscopy
808-6Leukocytes [#/volume] in Pleural fluid by Manual count
10*3/uL
53225-9Leukocytes [#/area] in Specimen by Wet preparation
/[HPF]
49224-9Leukocytes [#/area] in Semen by Microscopy high power field
/[HPF]
810-2Leukocytes [#/volume] in Peritoneal fluid by Manual count
/uL
10579-1Leukocytes [#/volume] in Semen
10*3/uL
26469-7Leukocytes [#/volume] in Synovial fluid
10*3/uL
26468-9Leukocytes [#/volume] in Peritoneal fluid
10*3/uL
26467-1Leukocytes [#/volume] in Pleural fluid
10*3/uL
30404-8Leukocytes [#/volume] in Stool
/mL
814-4Leukocytes [#/volume] in Synovial fluid by Manual count
/uL
32761-9Leukocytes [Presence] in Specimen by Wet preparation
805-2Leukocytes [#/volume] in Cerebral spinal fluid by Automated count
10*3/uL
20584-9Leukocytes [#/volume] in Specimen by Automated count
10*3/uL
32825-2Leukocytes [Presence] in Semen
806-0Leukocytes [#/volume] in Cerebral spinal fluid by Manual count
/uL
12226-7Leukocytes [Presence] in Vaginal fluid by Wet preparation
33052-2Leukocytes [Presence] in Urine
42327-7Leukocytes [Presence] in Stool by Methylene blue stain
804-5Leukocytes [#/volume] in Blood by Manual count
10*3/uL
58805-3Leukocytes [#/volume] in Urine by Automated test strip
/uL
51487-7Leukocytes [#/volume] in Urine by Automated count
/uL
26465-5Leukocytes [#/volume] in Cerebral spinal fluid
/uL
6743-9Leukocytes [#/volume] in Body fluid by Manual count
/uL
26466-3Leukocytes [#/volume] in Body fluid
10*3/uL
57845-0Leukocytes [#/volume] in Body fluid by Automated count
10*3/uL
20455-2Leukocytes [Presence] in Urine sediment by Light microscopy
20408-1Leukocytes [#/volume] in Urine by Test strip
/uL
30405-5Leukocytes [#/volume] in Urine
/uL
46702-7Leukocytes [#/area] in Urine sediment by Automated count
/[HPF]
5821-4Leukocytes [#/area] in Urine sediment by Microscopy high power field
/[HPF]
99776-7Leukocytes [#/volume] in Bronchoalveolar lavage by Automated count
10*9/L
99928-4Leukocytes [Presence] in Body fluid by Automated
100849-9Leukocytes [#/volume] in Amniotic fluid by Manual count
/uL
99929-2Leukocytes [#/area] in Body fluid by Automated count
/[HPF]
104646-5Leukocytes [#/area] in Urine by Computer assisted method
/[HPF]
105104-4Leukocytes [#/area] in Urine sediment
/[HPF]
105105-1Leukocytes [Presence] in Urine sediment
105921-1Leukocytes [#/volume] in Urethra by Wet preparation
/uL
107011-9Leukocytes [Presence] in Urethra by Wet preparation
107465-7Leukocytes [Presence] in Pus by Light microscopy
107469-9Leukocytes [Presence] in Aspirate by Light microscopy
107472-3Leukocytes [Presence] in Tissue by Light microscopy
107475-6Leukocytes [Presence] in Wound deep by Light microscopy
107476-4Leukocytes [Presence] in Wound shallow by Light microscopy
107483-0Leukocytes [Presence] in Pericardial fluid by Light microscopy
107497-0Leukocytes [Presence] in Bronchial specimen by Light microscopy
12225-9Leukocytes [#/area] in Sputum by Microscopy high power field
/[HPF]
14105-1Leukocytes [Presence] in Nose by Light microscopy
14373-5Leukocytes [#/volume] in Gastric fluid by Manual count
10*3/uL
14810-6Leukocytes [#/volume] in Bronchial specimen by Manual count
18407-7Leukocytes in 12 hour Urine sediment by Light microscopy
30401-4Leukocytes [#/volume] in Bronchial specimen
30402-2Leukocytes [#/volume] in Gastric fluid
10*3/uL
30403-0Leukocytes [#/volume] in Pericardial fluid
10*3/uL
32142-2Leukocytes [Presence] in Synovial fluid by Light microscopy
33028-2Leukocytes [#/volume] in Blood from Blood product unit
10*3/uL
33765-9Leukocytes [#/volume] in Blood Product unit.platelet pheresis by Automated count
10*3/uL
40533-2Leukocytes [#/volume] in Peritoneal dialysis fluid by Manual count
/uL
47281-1Leukocytes [#/volume] in Cord blood
10*3/uL
53226-7Leukocytes [#/area] in Urethra by Wet preparation
/[HPF]
53227-5Leukocytes [#/area] in Cervix by Wet preparation
/[HPF]
53518-7Leukocytes [#/volume] in Dialysis fluid
10*3/uL
53964-3Leukocytes [Presence] in Urine by Visual
57846-8Leukocytes [#/volume] in Pericardial fluid by Automated count
10*3/uL
57847-6Leukocytes [#/volume] in Dialysis fluid by Manual count
10*3/uL
59829-2Leukocytes in 3 hour Urine sediment by Light microscopy
{WBC}/min
60433-0Leukocytes by Light microscopy in Urine sediment collected for unspecified duration
62239-9Leukocytes [#/volume] in Blood from Fetus by Automated count
10*3/uL
62251-4Leukocytes [#/volume] in Pleural fluid from Fetus by Automated count
/uL
63554-0Leukocytes in 24 hour Urine sediment by Microscopy
/d
68368-0Leukocytes [#/volume] in Dialysis fluid by Automated count
10*3/uL
68434-0Leukocytes [#/volume] in Vitreous fluid by Automated count
10*3/uL
72163-9Leukocytes [Presence] in Specimen by Gram stain
72348-6Leukocytes [#/volume] in Prostatic fluid by Manual count
10*6/L
809-4Leukocytes [#/volume] in Peritoneal fluid by Automated count
10*3/uL
82587-7Leukocytes [#/volume] in Bone marrow by Automated count
10*9/L
88114-4Leukocytes [Presence] in Cerebral spinal fluid by Gram stain
88343-9Leukocytes [Presence] in Ear by Light microscopy
92635-2Leukocytes [#/volume] in Buffy Coat
{#}/mL
95218-4Leukocytes [#/volume] in Stem cell product
10*9/L
96712-5Leukocytes [#/area] in Body fluid by Light microscopy
/{field}
96718-2Leukocytes [#/area] in Prostatic fluid by Light microscopy
/{field}
98020-1Leukocytes [#/volume] in Lower respiratory specimen by Manual count
/uL
99051-5Leukocytes [#/volume] in Bronchoalveolar lavage by Manual count
10*9/L
99775-9Leukocytes [#/volume] in Peritoneal dialysis fluid by Automated count
10*9/L
Available Lab Tests
Order tests that measure this biomarker
Absolute Lymphocyte Count
$20.68
Advanced Cardiovascular Health Basic
$132.55
Advanced Cardiovascular Health Comprehensive
$526.57
Advanced Liver Health Basic
$293.92
Advanced Liver Health Comprehensive
$1044.34
Complete Blood Count (CBC) with Differential and Platelets Blood Test
$15.79
Results in Same day to 1 business day
Urinalysis Complete
$18.76
Results in Same day to 1 business day
Urinalysis Complete Test with Reflex to Culture
$24.64
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Doctors who commonly order this test