Ask the Expert

Growth and Nutrition Experts’s Bio Image

Get answers to your child's growth, nutrition, and feeding behavior questions.

Growth and Nutrition Experts’s Bio | Q&A Archive

Note: This is for informational purposes only. Doctors cannot provide a diagnosis or individual treatment advice via e-mail. Please consult your physician about your specific health care concerns.

Fetal scalp pH testing - Results

Alternative Names

Fetal scalp blood; Scalp pH testing; Fetal blood testing - scalp

Normal Values:

Normal fetal blood sample results are:

Normal pH: 7.25 - 7.35
Borderline pH: 7.20 - 7.25

What abnormal results mean:

A fetal scalp blood pH level less than 7.20 is considered abnormal.

In general, low pH suggests that the baby does not have enough oxygen, which could mean that the baby is not tolerating labor very well. However, the results of a fetal scalp pH sample need to be interpreted in the context of each individual labor. The provider may feel that the results indicate that the baby needs to be delivered quickly, either by forceps or by cesarean section.

Fetal scalp pH testing may need to be repeated a few times during a complicated labor to continue to check on the baby.

Fetal blood testing

Reviewed last on: 7/26/2010
Neil K. Kaneshiro, MD, MHA, Clinical Assistant Professor of Pediatrics, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

References

Garite TJ. Intrapartum fetal evaluation. In: Gabbe SG, Niebyl JR, Simpson JL, eds. Obstetrics – Normal and Problem Pregnancies. 5th ed. New York, NY: Churchill Livingstone; 2007:chap 15.

The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.

A.D.A.M., Inc. is accredited by URAC, also known as the American Accreditation HealthCare Commission (www.urac.org). URAC's accreditation program is an independent audit to verify that A.D.A.M. follows rigorous standards of quality and accountability. A.D.A.M. is among the first to achieve this important distinction for online health information and services. Learn more about A.D.A.M.'s editorial policy, editorial process and privacy policy. A.D.A.M. is also a founding member of Hi-Ethics and subscribes to the principles of the Health on the Net Foundation (www.hon.ch).

Connect with UMMC

© 2011 University of Maryland Medical Center (UMMC). All rights reserved.
UMMC is a member of the University of Maryland Medical System,
22 S. Greene Street, Baltimore, MD 21201. TDD: 1-800-735-2258 or 1.866.408.6885

Home > Medical Reference > Encyclopedia (English)