: Platelet Count, Automated, in Whole Blood (Fetal Specimen)
: This test measures the number of platelets in a sample of fetal whole blood using an automated analyzer. It helps assess fetal clotting capability and is typically obtained during specialized fetal evaluation.
[": A fetal platelet count gives information about how well a developing baby's blood can clot."]
Key facts at a glance
- LOINC
- 62244-9
- Short code
- Platelet # Bld Fetus Auto
- Synonyms
- Platelet # Bld Fetus Auto
- Category
- hematology
- Sample
- whole-blood
- Container
- Lavender-top (EDTA)
- Units
- N/A
- Ref low
- 150
- Ref high
- 400
- Critical range
- 50 N/A – 1000 N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- automated-count
- CPT
- 85049
- SNOMED
- 900000000000003003
- Specimen volume
- 3 mL
- Stability
- Room temperature: 4h, Refrigerated: 24h
- Hemolysis max
- 0
- Lipemia max
- 0
- Icterus max
- 0
- TAT
- 4–24 hours
- Order
- routine
: What Is Being Tested
: Platelets are small blood cells that help form clots and stop bleeding. This test counts how many platelets are present in a fetal whole-blood sample, giving a picture of the baby's platelet production at the time of collection.
: How the Sample Is Collected
: The specimen is fetal whole blood, which is collected by a specially trained clinician, often through a procedure such as cordocentesis (sampling blood from the umbilical cord). This is a specialized procedure performed only when medically indicated.
: How the Test Is Performed
: The sample is run on an automated blood analyzer, which counts and sizes platelets electronically. If results are unexpected, the laboratory may review the sample under a microscope to confirm the count.
: What the Results Can Mean
: A low platelet count may suggest increased bleeding risk or a condition affecting platelet production, while a high count can occur with certain stresses or disorders. Results are interpreted alongside other fetal and maternal findings by the care team.
Reference range
Adult: 150-400 x 10^9/LN/A
No special preparation required. Stay well hydrated.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
◆Associated findings1
Short name
: Fetal Platelet Count
Frequently asked questions
: Is this test done routinely during pregnancy?
: Does a low fetal platelet count always mean there is a problem?
: Can I get exact reference ranges from this description?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
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Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy