White blood cell count (TC and DC)
Quick answer: This test measures the total number of white blood cells (TC) and the share of each type, such as neutrophils and lymphocytes (DC). It is used to look for infection, inflammation, allergy or blood disorders, and is part of a complete blood count.
- SampleBlood
- TakesAbout 5 minutes
- Before the testNo special preparation is usually needed.
How the test is done
- 1Blood is drawn into a purple-top tube
- 2An analyser counts the total white cells
- 3The cells are sorted into neutrophils, lymphocytes and other types
- 4A smear is checked by hand if anything looks unusual
What your results can mean
Reading your report
White cell counts rise with infection, stress and pregnancy; ranges differ between labs, so discuss your result with your doctor.
If the result is outside the usual range
A high count can be seen with infection, inflammation, stress, pregnancy, steroid medicines or blood cancers. A low count can be seen with viral infections, some medicines, autoimmune disease or bone marrow problems.
Who usually has this test
People with fever, infection or tiredness, and anyone having a routine blood check.
Risks and aftercare
Bruising is possible; see a doctor promptly if you have fever and are told your count is low.
Names and options
Also called: WBC count, TC DC, total count, differential count, leukocyte count
Options
- Total count (TC)
- Differential count (DC)
Listed by the hospital as
- WBC DIFFERENTIAL COUNT
- WBC TOTAL COUNT (TC)
Questions about this test
Can a high white count be normal in pregnancy?
Yes, white cells often rise in pregnancy, especially near labour. Doctors read the result with this in mind.
What do TC and DC mean?
TC is the total count of white cells. DC is the differential count, the share of each type.
Can exercise or stress raise white cells?
Yes, hard exercise, stress and smoking can raise the count for a short time. A repeat test may be suggested if it is only slightly high.
Related tests
Tamara Hospital & IVF Centre, Rajajinagar
34/3, 10th Cross Road, opp. Vardhaka Sardar Patel School, 1st N Block, 2nd Stage, Rajajinagar, Bengaluru 560010
The hospital is open 24 hours. Call before you come to check the timing for your scan or sample collection.
Get directions ↗IVF Pulse fertility care at Tamara Hospital →
Reception
Waiting area
IVF lab
This page explains each test in general terms so you know what to expect. It is not medical advice: your doctor decides which tests you need and what your results mean. Reference ranges differ between laboratories. Updated 4 November 2026.