Eosinophils

HematologyAlso known as: Eosinophil countN/A

Detects eosinophil white blood cells in sputum samples under microscopy.

Normal Range
Consult your provider
N/A
Abnormal Levels
Consult your provider
Specimen Type
Blood

Why This Biomarker Matters

Sputum eosinophils indicate allergic or parasitic airway inflammation. Identifying eosinophilic patterns helps diagnose asthma and other inflammatory lung conditions requiring targeted treatment.

Overview

Eosinophils are a type of white blood cell involved in allergic and parasitic responses. This test examines sputum (phlegm coughed up from lungs) under a microscope to detect eosinophils. Elevated sputum eosinophils suggest eosinophilic airway inflammation, which may indicate asthma, eosinophilic bronchitis, parasitic infections, or allergic conditions. This test helps diagnose conditions causing chronic cough and guides treatment selection.

Related Health Conditions

Conditions where Eosinophils is commonly tested

Airway hyperreactivity

Allergic asthma

Atopic dermatitis

Contact dermatitis

Food allergy

Related Health Goals

Manage Allergies

Promote Skin Health

Support Respiratory Health

Treatments & Interventions

Therapies monitored using Eosinophils

Pseudoephedrine sulfate

Pseudoephedrine hydrochloride

Betamethasone benzoate

Methdilazine

Tripelennamine citrate

Aluminum acetate

Terbutaline sulfate

Diprophylline

Cortisone

Zinc oxide

Iodinated glycerol

Theophylline anhydrous

Methdilazine hydrochloride

Salbutamol sulfate

Hydrocortisone butyrate

Clinical Trials

352
Total Trials
40
Recruiting
114
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
View all 352 trials on ClinicalTrials.gov

Technical Information (LOINC Codes)

Standardized laboratory codes for this biomarker

26449-9Primary
Eosinophils [#/volume] in Blood
10*3/uL
711-2
Eosinophils [#/volume] in Blood by Automated count
10*3/uL
48049-1
Eosinophils [Presence] in Stool by Wright stain
49839-4
Eosinophils [Presence] in Urine sediment by Wright stain
29993-3
Eosinophils [Presence] in Sputum by Wright stain
32173-7
Eosinophils [Presence] in Blood by Wright stain
35060-3
Eosinophils [#/volume] in Synovial fluid
10*3/uL
60520-4
Eosinophils [Presence] in Body fluid by Light microscopy
45379-5
Eosinophils [Presence] in Stool by Light microscopy
35061-1
Eosinophils [#/volume] in Peritoneal fluid
10*3/uL
55778-5
Eosinophils [#] in Cerebral spinal fluid by Manual count
{#}
34957-1
Eosinophils [#/volume] in Cerebral spinal fluid by Manual count
10*3/uL
29992-5
Eosinophils [Presence] in Nose by Wright stain
48710-8
Eosinophils [Presence] in Specimen by Light microscopy
34958-9
Eosinophils [#/volume] in Cerebral spinal fluid
10*3/uL
20472-7
Eosinophils [Presence] in Specimen by Wright stain
76407-6
Eosinophils [#] in Body fluid by Manual count
{#}
5785-1
Eosinophils [#/area] in Urine sediment by Microscopy high power field
/[HPF]
25156-1
Eosinophils [Presence] in Urine sediment by Light microscopy
35063-7
Eosinophils [#/volume] in Body fluid
10*3/uL
40569-6
Eosinophils [#/volume] in Body fluid by Manual count
10*3/uL
712-0
Eosinophils [#/volume] in Blood by Manual count
10*3/uL
34726-0
Eosinophils [#/area] in Peritoneal fluid by Microscopy high power field
/[HPF]
66141-3
Eosinophils [#/volume] in Blood from Fetus by Manual count
10*3/uL
67829-2
Eosinophils [#/volume] in Pericardial fluid
/uL
67835-9
Eosinophils [#/volume] in Pleural fluid from Fetus
/uL
68398-7
Eosinophils [#/volume] in Pericardial fluid by Manual count
10*3/uL
68399-5
Eosinophils [#/volume] in Peritoneal fluid by Manual count
10*3/uL
68400-1
Eosinophils [#/volume] in Pleural fluid by Manual count
10*3/uL
68401-9
Eosinophils [#/volume] in Synovial fluid by Manual count
10*3/uL
68402-7
Eosinophils [#/volume] in Vitreous fluid by Manual count
10*3/uL
50341-7
Eosinophils [Presence] in Sputum by Hansel stain
74404-5
Eosinophils [#/volume] in Cord blood
10*9/L
35062-9
Eosinophils [#/volume] in Pleural fluid
10*3/uL
50340-9
Eosinophils [Presence] in Nose by Hansel stain

Available Lab Tests

Order tests that measure this biomarker

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

Find Specialists

Doctors who commonly order this test

Dermatology
Internal Medicine
Allergy & Immunology
Gastroenterology
Pulmonary Disease
Otolaryngology