Obs Flashcards
(144 cards)
PPH initial assessment
DRSABC (as relevant to circumstances)
Assessment
· Rate/volume of bleeding
· Lie flat, oxygen 15 L/minute, keep warm
· Continuous heart rate and SpO2, 15 minutely BP and temperature
· Ensure routine third stage oxytocic given
· 4Ts (tissue, tone, trauma, thrombin)
PPH immediate investigations
· FBC
·Full chemistry profile (Chem20)
·coagulation profile
·blood gas
· X-match if none current with laboratory
· ROTEM® /TEG® if available
· POC pathology (iSTAT, Hemocue) if no onsite laboratory
Things to ask your self in each of these 4
- Tissue
- Tone
- Trauma
- Thrombin
Tissue Apply CCT and attempt delivery • Transfer to OT if: o Placenta adherent/trapped o Cotelydon and membranes missing
Tone
• Massage fundus/expel uterine clots
• Empty bladder (IDC may be required)
Oxytocin–> Ergometrine->Oxytocin Infusion
Trauma • Inspect cervix, vagina, perineum • Clamp obvious arterial bleeders • Repair—secure apex • Transfer to OT if unable to access site
Thrombin • Do not wait for blood results to treat • Use ROTEM® /TEG® if available • Monitor 30–60 minutely FBC, ABG, coagulation profile, ionised calcium • Review MHP activation criteria • Avoid hypothermia and acidosis
Can infection increase the risk of PPH
Chorioamnionitis can increase the risk of PPH
Syntometrine
For low-risk birth, routinely use oxytocin in preference to syntometrine50
Tone in PPH
The uterine cavity must be empty of tissue for effective uterine contraction. Initial clinical and
mechanical measures include:
· Massage uterine fundus to stimulate contractions
· Assess need for bimanual compression
· Check placenta and membranes are complete
· Expel uterine clots
· Insert indwelling catheter to maintain empty bladder
What are some maternal and fetal(2) signs of uterine rupture
Signs of uterine rupture may include:
o Maternal: tachycardia and signs of shock, sudden shortness of breath, constant abdominal pain, possible shoulder tip pain, uterine/suprapubic tenderness, change in uterine shape, pathological Bandl’s ring, incoordinate or cessation of contractions, frank haematuria, abnormal
vaginal bleeding, abdominal palpation of fetal parts, absent presenting part
o Fetal: abnormal CTG tracing, loss of fetal station
If 4 T are OK, what are the other things you consider now -3 things
oUterine rupture o Uterine inversion o Puerperal haematoma o Non-genital cause (e.g. subcapsular liver rupture, AFE) · Repeat 4T assessment
What advice do we need to give for thromboprophylaxis for ALL pregnant and postnatal women
All pregnant and postnatal women should be educated about the benefits of mobilisation and avoiding dehydration as a thromboprophylactic measure. This is in addition to any other specific mechanical and/or pharmacological thromboprophylaxis that may be required.
If recommended during pregnancy, venous thromboprophylaxis (VTE) may include:
Low molecular weight heparin (LMWH) and graduated compression stockings
If indicated, postnatal thromboprophylaxis should commence:
Postnatal thromboprophylaxis should commence as soon as practical after birth.
State other names for early pregnancy loss
Early pregnancy loss, miscarriage, or spontaneous abortion.
Define Spontaneous abortion/miscarriage
loss of pregnancy before 20 weeks’ gestation
Define Stillbirth
Stillbirth: loss of pregnancy after 20 weeks’ gestation (also called intrauterine fetal demise)
Define recurrent pregnancy loss
Recurrent pregnancy loss: two or more miscarriages occurring before 20 weeks’ gestation
What are some causes of miscarriage
tip- divide into maternal, maternoplacental and systemic
Maternal
1) Abnormalities of the reproductive organs Septate uterus Uterine leiomyomas Uterine adhesions Cervical incompetence
2) Systemic diseases
Including diabetes mellitus, hyperthyroidism, hypothyroidism, genetic disorders, infections, hypercoagulability (e.g., antiphospholipid syndrome, which is associated with recurrent miscarriages)
Fetoplacental
Chromosomal abnormalities account for up to half of all spontaneous abortions
Congenital anomalies
Miscellaneous
Trauma
Iatrogenic (e.g., amniocentesis or chorionic villus sampling)
Environmental (exposure to toxins such as drugs or maternal smoking during pregnancy)
Unknown
State causes of some causes of stillbirth
1) maternal
2) maternoplacental
3) Miscellaneous
Maternal
- Fetal-maternal hemorrhage
- Diabetes mellitus
- Hypertensive pregnancy disorders (especially if complicated by placental insufficiency or placental abruption)
- Uterine rupture
- Advanced age
- Heavy smoking
Fetoplacental
- Intrauterine growth restriction (which is most commonly due to placental insufficiency)
- Placental abnormalities (e.g., placental abruption, vasa previa)
- Infection (especially following premature rupture of membranes)
- Chromosomal abnormalities
- Congenital malformations
- Umbilical cord complications (nuchal cord or knot leading to fetal vascular compromise)
- Fetal hydrops
Miscellaneous
- Unknown (in some studies, more than half of all stillbirths were of unknown etiology)
- Environmental (exposure to toxins such as drugs or maternal smoking during pregnancy)
What are the types of abortions
Threatened Inevitable Missed Incomplete Complete Stillbirth
Findings and cervical change in a threatened abortion
Vaginal bleeding
Fetal activity
Reversible–> pregnancy can go through normally but high risk
Cervical os is closed
All other abortions the prognosis is irreversible
Findings and cervical change in an inevitable abortion
Vaginal bleeding, and visible/palpable products of conception
Fetal activity may be present.
Cervical os is dilated
Findings and cervical change in a missed abortion
No bleeding
No expulsion of the products of conception
No fetal activity
Cervical os is closed
Findings and cervical change in an incomplete abortion
Vaginal bleeding; products of conception within the cervical canal or uterus
Usually occurs > 12 weeks’ gestation
Cervical os is dilated
Findings and cervical change in a complete abortion
Vaginal bleeding; products of conception completely outside of the uterus
Usually occurs < 12 weeks’ gestation
Cervical os is closed
Stillbirth- main findings
Absence of fetal movements and cardiac activity