Fetal Maternal Plasma/Serum Iron Measurement (Mass Concentration)
This test measures the amount of iron present in your blood, specifically in the plasma or serum of both you and your baby, to assess iron status during pregnancy.
["Iron levels help ensure both you and your baby have enough iron for healthy development."]
Key facts at a glance
- LOINC
- 11796-0
- Short code
- Fet MV Diam US.meas
- Synonyms
- Fet MV Diam US.meas
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- us-measured
- Specimen volume
- 5 mL
- Stability
- Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
- Hemolysis max
- 500
- Lipemia max
- 1000
- Icterus max
- 500
- TAT
- 4–24 hours
- Order
- routine
Why This Test Is Done
Your healthcare provider may order this test if you have signs of iron deficiency, such as fatigue, pale skin, or unusual tiredness. It may also be done during prenatal visits to monitor iron levels in both you and your baby, especially if you have certain medical conditions like anemia or high-risk pregnancies.
What to Expect Before the Test
You may need to fast for a few hours before the test, depending on the method used. A blood sample will be taken from a vein in your arm. The process is quick and usually painless. You may feel a slight pinch when the needle is inserted, but you should not feel any discomfort afterward.
What Happens During the Test
The healthcare professional will clean the area with an antiseptic solution and insert a small needle into your vein. Blood will be drawn into a tube. The process usually takes a few minutes. Once the blood is collected, the needle will be removed, and a bandage will be applied.
What to Expect After the Test
You may experience some bruising, swelling, or minor discomfort at the injection site. Apply a cold compress if needed. Avoid heavy lifting or strenuous activity for a short time. Most people can return to their normal activities immediately.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Low iron levels in either you or your baby can lead to anemia, which may cause fatigue, weakness, and developmental issues. High iron levels can also be harmful and may require monitoring or treatment. This test helps identify iron status early, allowing for timely interventions to prevent complications.
Short name
Fetal Iron Level
Frequently asked questions
How long does it take to get the results of this test?
What does a low or high iron level mean?
You may need to follow fasting instructions, but always confirm with your healthcare provider. Generally, clear fluids like water are allowed unless specified otherwise. Avoid eating or drinking anything except water for the specified period before the test.
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.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy