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Chlorideurfetusscnc

Published: July 31, 2026Updated: August 16, 2026

A prenatal test measuring chloride levels in fetal urine to assess fetal kidney function and fluid balance.

Quick summary

{"Measures chloride concentration in fetal urine during pregnancy","Helps evaluate fetal kidney development and function","Used to monitor fetal health and detect potential complications","Part of prenatal surveillance in high-risk pregnancies","Abnormal results may indicate fetal kidney issues or dehydration"}

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
94840-6
Short code
Chloride Ur Fetus-sCnc
Synonyms
Chloride Ur Fetus-sCnc
Category
electrolyte
Sample
urine
Container
Sterile urine container
Units
not specified
Ref low
0
Ref high
90
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
CPT
82435
SNOMED
110743000
Specimen volume
10 mL
Stability
Room temperature: 2h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
0
Lipemia max
0
Icterus max
0
TAT
4–24 hours
Order
routine

What is this test?

The Fetal Urine Chloride test measures the amount of chloride, an important electrolyte, in the fetal urine. Chloride is a mineral that helps maintain the body's fluid balance and is crucial for proper kidney function. This test is performed during pregnancy, typically through amniocentesis, where a sample of amniotic fluid containing fetal urine is collected and analyzed in a laboratory.

Healthcare providers use this test to indirectly assess how well the fetal kidneys are developing and functioning. Since fetal urine is a major component of amniotic fluid in later pregnancy, measuring chloride levels can provide valuable information about fetal health and hydration status.

Reference range

Gestational age-dependent; typically <90 mmol/L (favorable renal prognosis)not specified

Specimen: urine

Obtained by ultrasound-guided fetal vesicocentesis; no fasting or special prep required

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings2

Frequently asked questions

How is the fetal urine chloride test performed?
The test is performed through amniocentesis, where a thin needle is used to extract a small amount of amniotic fluid from the uterus. The sample is then sent to a laboratory for analysis to measure the chloride concentration.
Is this test safe during pregnancy?
Amniocentesis carries a small risk of complications, including infection, bleeding, or preterm labor. Your healthcare provider will discuss the risks and benefits with you before performing the procedure.
What do high chloride levels mean?
Elevated fetal urine chloride levels may indicate fetal dehydration, reduced amniotic fluid volume, or impaired kidney function. Your healthcare provider will interpret these results in conjunction with other clinical findings.
When is this test typically ordered?
This test is usually ordered when there are concerns about fetal kidney development, amniotic fluid levels, or in high-risk pregnancies requiring close monitoring of fetal well-being.
How should I prepare for this test?
No specific preparation is needed. Your healthcare provider will give you instructions before the procedure. You may be asked to have a full bladder or to empty your bladder before the test.
  1. 1
    LOINC Code InformationSource
  2. 2
    Mayo Clinic - AmniocentesisSource

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.

Medical Disclaimer

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