Triage Senarios

Other useful links:

Data supported tool for OB triage acuity -- AJOG article about OTAS system 2013 and JOGC OTAS system 2016 review 

This is another adaptation of the OTAS above - similar 5 tier scale with different organization

From Seminars in Perinatology 2020 

Specific Scenario Resources:

APGO - Preterm Labor Video 

Creogs over Coffee - 2019 



Remember: Get a FFN first!! You can always not send it on but once exam done can't collect it. 

Triage pathway preterm.PNG
Suggested algorithm adapted from March of Dimes 

Management of Preterm Labor:

Rule out Rupture:

Amnisure – Vaginal swab, processed in lab 

Significant bleeding and recent digital exam interfere with result (The performance of AmniSure has not been established in the presence of the following contaminants: meconium, anti-fungal creams or suppositories, K-Y Jelly, Baby Powder (Starch and Talc), Replens, and Baby Oil.) 

Expensive (~$500) 

ROM Plus – Vaginal swab, processed in lab 

Only significant bleeding interferes with the result (lubricant, semen okay) 

Middle road expensive (~$100) 

Ferning/pooling/nitrizine - Speculum exam with a slide and ph strip 

Semen and urine can also cause ferning and nitrazine positive (so get fluid from the os if at all possible)

Very inexpensive (pennies)

Ultrasound to confirm oligohydramnios (max vertical pocket <2) though if pt has oligo this is misleading, more helpful to add to a convincing picture  

Ferning on microscope

Pre-labor rupture of membranes ("PROM") Creogs over coffee - Labor episode (middle section re: PROM) 2021, see above ALSO chapter as well

Vaginal Bleeding

Dangerous causes: 

Most common cause of serious vaginal bleeding, occurring in 1 percent of pregnancies 

Risk factors: tobacco or cocaine use, chronic hypertension, preeclampsia, thrombophilias, abdominal trauma, and abruption in a previous pregnancy 

*Cannot rule out with US, but if seen on US it is an abruption*

Initial sentinel bleed not usually dangerous without cervical instrumentation or cervical digital examination 

Risk factors: Chronic hypertension, Multiparity, Multiple gestations, Older age, Previous cesarean delivery, Tobacco use, Uterine curettage 

This is fetal blood so needs to be acted on quickly - average blood volume of a term fetus is approximately 250 mL 

Risk factors: In vitro fertilization, Low-lying and second trimester placenta previa, Marginal cord insertion, Multiple gestation, Succenturiate-lobed and bilobed placentas 

Common causes: recent cervical exam or membrane stripping, intercourse, cervical change ("bloody show")

Decreased Fetal Movement ("DFM")

**Remember if RN can't get doptones - bring support person (senior/attending) if possible and ultrasound.  Make this eval a priority**

Creogs over coffee - Stillbirth 2020 


Stillbirth (second trimester but gen info) AFP 2007 

AFP patient info for stilbirth 

CTG = NST (this is an Australian flowsheet

IUFD = Intrauterine fetal demise

FMH = Fetomaternal hemorrhage 

Resources for coping:

Jensi's phone number 715-379-6148

Link to madlines to find Acting Chief - please call for support!! 

SMPH employee assistance information 


In addition, the following resources are available:

issues with your resident colleagues from all our DFMCH-sponsored GME programs. This resident/fellow-only email

forum, hosted by the chief residents from each program, is available at resident.forum@fammed.wisc.edu. This

confidential forum permits only residents to send and receive messages—it is not accessible to faculty, staff, or

others. Contact your chief resident(s) for more details

For more information, or to arrange an appointment contact the Employee Assistance Office per your residency program:

• UW Employee Assistance Office (EAO) at eao@mailplus.wisc.edu or call (608) 263-2987 or toll free 877-260-0281

o More information is available on the website at https://eao.wisc.edu/