Per vaginal bleeding
Assessment and management is based on pregnancy being diagnosed with bHCG.
Non pregnant PV bleeding may represent a spectrum from benign to significant pathology and other than clear and obvious simple explanations will require seeking advice and referral to gynaecological services:
Abnormal or normal menstrual period, first menstrual period
Trauma, FB, sexual assault
Hormonal contraception related
Infection UTI, PID, retained tampon
Cancer – cervical or uterine
Bleeding from another source (rectal, anal)
A clear history is essential
Bleeding history
Duration
Volume by pads and clots
Increasing / decreasing?
Associated with pain (ectopic)?
Products of conception or tissues seen
Other symptoms, such as urinary, general (anorexia/infection) or syncope (blood loss)
Examination may alert you to significant pathology
General examination:
Primary survey, ABCDE approach as in any patient particularly if unstable. (In unstable patients this will involve IV access and fluid)
Specific examination
Abdominal- tenderness and peritonism may indicate ruptured ectopic and potential for life threatening bleeding
PV examination- indicated if there is concern about a local non uterine cause of bleeding or about clots in the os leading to pain or vaginal symptoms. We suggest PV examination in cases of trauma, peritonism, large volume bleeding and shock.
Where there is no significant pain, vaginal vault or cervical pathology is not a concern and there are no other specific indications then it is not necessary.
Laboratory
FBC - WCC for infection, WCC often raised in pregnancy - so not specific if raised.
BHCg - quantitative - confirm pregnancy.
Blood Group and hold - If patient is unstable consider O-ve blood. May need anti-D if Rhesus negative.
NSW Health Guidelines - Maternity - Rh (D) Immunoglobulin (Anti D) - GL2015_011
Imaging
Pelvic ultrasound scan, to determine:
Intrauterine pregnancy
Tubal pregnancy
Evidence of bleeding such as pelvic / abdominal free fluid
Other pathology
Ectopic Pregnancy
1-2% pregnancies are ectopic.
Whenever there is bleeding in early pregnancy then we need to consider any red flags for ectopic pregnancy:
Past history of ectopic pregnancy
Previous PID
Intrauterine contraceptive device in situ
Previous tubal surgery
Smoker
Abdominal tenderness or peritonism
Associated pain
Absence of identified intrauterine pregnancy at appropriate bHCG levels (risk of intra and extra uterine pregnancy in IVF patients)
Lower than expected bHCG levels for dates
Resources
Acute Antepartum Haemorrhage Management Framework Placenta Praevia: PV Bleeding Algorithm
ACEM Guidelines on diagnostic imaging (G126) - see page 7