Nonstress test

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Nonstress test
Diagnostics
ICD-9-CM75.34
 
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Nonstress test
Diagnostics
ICD-9-CM75.34

A nonstress test (NST) is a screening test used in pregnancy. A cardiotocograph is used to monitor the fetal heart rate.[1]

Premise[edit]

The premise of the NST is that a well-oxygenated, non-acidemic fetus will spontaneously have temporary increases in the fetal heart rate (FHR).[2]

Interpretation[edit]

Vibroacoustic stimulation can wake the fetus, and is sometimes used to speed up the test or to facilitate further evaluation of a nonreactive nonstress test.[5]

See also[edit]

References[edit]

  1. ^ London, Marcia; Ladewig, Patrica; Ball, Jane; Bindler, Ruth (2007). Maternal & Child Nursing Care. Upper Saddle River, NJ: Prentice Hall. 
  2. ^ Smith, C. V.; Nguyen, H. N.; Phelan, J. P.; Paul, R. H. (1986). "Intrapartum assessment of fetal well-being: a comparison of fetal acoustic stimulation with acid-base determinations". Am J Obstet Gynecol 155: 726–728. 
  3. ^ a b Association of Women’s Health, Obstetric, and Neonatal Nurses (2005). Lyndon, Audrey Lyndon; Ali, Linda Usher, eds. Fetal Heart Monitoring: Principles and Practices (3rd ed.). Dubuque, IA: Kendall/Hunt Publishing Co. ISBN 978-0-7575-6234-1. 
  4. ^ Cousins, L. M.; Poeltler, D. M.; Faron, S.; Catanzarite, V.; Daneshmand, S.; Casele, H. (October 2012). "Nonstress testing at ≤ 32.0 weeks' gestation: a randomized trial comparing different assessment criteria". Am J Obstet Gynecol. (Mosby, Inc.) 207 (4). doi:10.1016/j.ajog.2012.06.032. Retrieved 3 July 2013. 
  5. ^ Chervenak, Frank A.; Kurjak, Asim (2006). Textbook of Perinatal Medicine, Second Edition (Two Volumes). Informa Healthcare. ISBN 1-84214-333-6.