White Blood Cell Count (WBC) and Differential
Quest Diagnostics
Sample type: Whole blood
Requires fasting: No
Phlebotomy required
Details
This test is primarily used to monitor the body's response to infection. It's also crucial for diagnosing conditions like leukemia and other leukocyte disorders, as well as for tracking the effectiveness of treatments for these diseases.
- Neutrophils (%)
- Monocytes (%)
- Lymphocytes (%)
- Eosinophils (%)
- Basophils (%)
- Band Neutrophils
- Blasts
- Metamyelocytes
- Myelocytes
- Nucleated RBC
- Promyelocytes
- Band Neutrophils (%)
- Basophils
- Blasts (%)
- Eosinophils
- Lymphocytes
- Metamyelocytes (%)
- Monocytes
- Myelocytes (%)
- Neutrophils
- Nucleated RBC (%)
- Promyelocytes (%)
- Reactive Lymphocytes
- White Blood Cell Count (WBC)
Estimated days for results: Results should be available in 2 - 5 business days after the sample is collected
Details
White Blood Cell Count (WBC) and Differential - This test is a crucial screening tool for identifying various conditions, including leukemia and inflammation. It measures the number of white blood cells in the blood, which are vital for fighting infections and diseases.
What patients is this test right for?
This test may be recommended if patients show symptoms of infection or inflammation.
Common Symptoms:
- Fever
- Weakness or fatigue
- Unexplained weight loss
- Frequent infections
- Bruising or bleeding easily
What type of sample is required for this test?
Whole blood from a full EDTA (lavender-top) tube is needed for this test.
2–5 business days
Blood Draw Options with Fullscript
Fullscript offers several convenient phlebotomy options to complete your lab testing:
Quest Diagnostics Patient Service Centers (PSC)
- Location: Visit a nearby Quest Diagnostics Patient Service Center.
- Cost: $10 sample collection fee (paid during lab order checkout).
- Scheduling: Schedule your appointment here. Appointments are recommended to reduce wait times. Walk-ins are accepted, but may experience delays. Aim to arrive 10 minutes before your appointment.
- Collection Instructions:
- Bring a valid ID.
- Bring your digital or printed requisition form, available in the Labs tab of your Fullscript account.
- Check-in: Scan the QR code from your confirmation email or follow kiosk instructions.
- More Info: Quest Diagnostics blood draw guide
Getlabs Mobile Phlebotomy
- Location: Sample collection at your home or office.
- Cost: $85 sample collection fee (paid during lab order checkout).
- Availability: Available in most locations – enter your ZIP code during checkout to confirm.
- Scheduling: Schedule your appointment here through your Fullscript account.
- Collection Instructions:
- Have your digital or printed requisition form and valid ID ready.
- Your phlebotomist will contact you by phone to coordinate arrival.
- More Info: Getlabs blood draw guide
Specimen
- Preferred Specimen(s): Whole blood from a full EDTA (lavender-top) tube
- Alternative: NA
- Minimum Volume: 1 mL
- Collection Instructions: NA
Storage and shipping instructions
- Transport Container: EDTA (lavender-top) tube
- Transport Temperature: Room Temperature
- Specimen Stability:
- Room temperature: 48 hours
- Refrigerated: Not provided
- Frozen: Not provided
- Reject Criteria:
- Gross hemolysis • Age of specimen exceeds 48 hours • Clotted
State restrictions:
Patient can't order this test if they are located in Hawaii, Puerto Rico, New Jersey, New York, or Rhode Island
