Obstetrics Flashcards

1
Q

Ectopic pregnancy

Aetiology/RF 
Location
Presentation 
Investigations 
Management 
Complications
A
Aetiology/RF 
POCP 
Previous ectopic 
Endometriosis 
Adenomyosis 
IUD 
IVF

Location

  • Tubular - ampulla most common, isthmus most dangerous
  • Ovary etc

Presentation

  • Abdo pain
  • Cervical excitation
  • period of amenorrhoea
  • PV bleed - dark blood - light flow
  • Shock if rupture + shoulder tip pain

Investigations

  • USS location
  • b-hCG

Management (depends on hCG and how well the pt is)

  • Conservative <300
    <30mm
  • Methotrexate <1500
    + progesterone
    <35mm
    No pain/ rupture
  • Surgical explorative laparotomy - salpingio-ooporectomy
    >1500
    If pain/ rupture

Complications
Rupture of fallopian tube
Shock
Death

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Management of ectopic

A

Management (depends on hCG and how well the pt is)

  • Conservative <300
    <30mm
  • Methotrexate <1500
    + progesterone
    <35mm
    No pain/ rupture
  • Surgical explorative laparotomy - salpingio-ooporectomy
    >1500
    If pain/ rupture
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Miscarriage

Aetiology 
RF 
Definition 
Presentation/ Types 
investigations 
Management
A

Aetiology

  • Aneulopidy
  • infection

RF

  • Infection (late)
  • Chromosomal abnormalities (most common)
  • APLS/ blood disorders
  • Autoimmune
  • Thyroid
  • Diabetes
  • Smoking, weight, alcohol

Definition - loss of pregnancy <24w

Presentation/ Types
Threatened - cervical os closed, small painless PV bleed, foetal pole intact

Inevitable
Cervical os open
PV bleed - may be larger, may be passing clots

Incomplete

  • Cervical os open, large PV bleed
  • uterus is still large

Missed/delayed
empty gestational sac
Cervical os closed

Complete
Cervical os closed, clots have passed, no foetal parts
Small uterus

investigations

  • USS
  • b-hCG
  • FBC and cross match - sensitising event so anti D if >12w and Rh-
Management 
Expectant  wait 7-10 days 
Medical:
Mifepristone
Misoprostol 48hrs later 

Surgical - ERPC/ suction
if heavy bleed/ infection

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Termination of pregnancy
Abortion act
Methods

A

> 24 weeks if:
Abortion act
1) Would endanger woman’s life
2) Carrying on is > risk than risk of termination
3) Risk to health of children
4) Mental or physical health would suffer if she carried on
5) The child born would be severely disabled/mentally handicapped

Methods
<9w
Mifepristone
+ Prostaglandin 48hrs later

Surgical 9-13w -suction

> 13w - surgical dilation and evacuation

> 24 - KCl

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Complications of TOP

A

Infection
Psychological
Rh- event if >12w

Haemorrhage
Uterine perforation
Retained products

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Placenta previa

Definition 
Aetiology 
RF 
Presentation/ Types 
investigations 
Management 
Complications
A

Definition - where the placenta lies near or over the cervical os

Aetiology 
previous previa/ CS
Multiple pregnancy 
Multips 
Maternal age ^

RF - smoking

Presentation/ Types
Presentation
Painless PV bleed - red blood
No uterine abnormalities on palpation

Investigations 
USS - placenta overlying the os 
Foetal CTG normal 
Usually an incidental finding on scans 
Abnormal lie 

Management
Rescan again at 34 weeks then every 2 weeks from then
Delivery at 37/8 if still there

Complications

  • PPH
  • Death
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Vasa previa

Definition 
Aetiology 
RF 
Presentation/ Types 
investigations 
Management 
Complications
A

Definition
Where the foetal vessels overlie the cervical os

Aetiology
Associated with villamentous insertion, multiple pregnancy

RF 
Presentation/ Types 
TRIAD 
PV bleed (painless 
Foetal bradycardia 
ROM 

Investigations
USS

Management
If ROM –> deliver cat1 CS
If no ROM - induce at 36w

Complications

  • Maternal PPH
  • Foetal exsanguination
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Placenta accreta

Definition 
Aetiology/ RF
Presentation/ Types 
Investigations 
Management 
Complications
A

Definition - abnormal insertion of the placenta into the uterine wall

Types
Accreta - to the myometrium
Increta - into the myometrium
precreta - past - serosa + beyond

Aetiology
Previous CS/ surgery
previous accreta

Presentation/ Types
May not realise until delivery –> PPH

Investigations

  • USS - swiss cheese appearance
  • FBC + cross match

Management
- CS at 37/8 weeks

Complications

  • PPH
  • Uterine prolapse/ rupture
  • Foetal death
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Placental abruption

Definition 
Aetiology/ RF
Presentation
Investigations 
Management 
Complications
A

Definition
When the placenta separates from the uterine wall before foetal delivery

Aetiology/ RF
HTN 
Pre-eclampsia 
Smoking 
Previous 
Presentation
Foetal brady/ CTG abnormality 
Maternal shock 
WOODY UTERUS 
May be no PV bleed/ or it would be light flow/ DARK blood 

Investigations

  • USS
  • FBC + cross match
Management 
- foetal distress --> CS 
- No foetal distress 
<37w - admit and monitor 
>37w - deliver 

Complications
PPH
Death

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Pre-eclampsia

Definition 
Aetiology/ RF
Presentation
Investigations 
Management 
Complications
A

Definition - HTN + proteinuria diagnosed after 20w

Aetiology/ RF
High risk 
CKD 
Autoimmune 
HTN in previous pregnancy 
Diabetes 
Chronic HTN 
Intermediate risk 
FHx 
First pregnancy
Multiple pregnancy 
BMI >35 
Age >40 
Interval between pregnancies >10 years 

Presentation
HTN + Proteinuria >0.3/24hrs

Hyperrefelxia + ankle clonus 
Headaches 
Visual disturbances 
Papilloedema 
RUQ pain 

Investigations

  • BP
  • Urine dip
  • LFTs - check platelet levels for HELLP syndrome

Management

  • if high risk - give 75mg aspirin from 12w
  • Labetalol (others - nifedipine/hydralazine)
  • Delivery - 34-36w

Complications

  • Eclampsia
  • HELLP
  • DIC - liver failure/ renal failure
  • Pulmonary oedema
  • Death

Foetal

  • IUGR
  • Prem delivery
  • Placental abruption risk
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Eclampsia

A

Pre-eclampsia +seizures

Rx
Magnesium + deliver

WHEN TO USE MAGNESIUM
- High risk pre-eclampsia/ eclampsia
- When having a seizure
- As soon as you decide to deliver –> 24hrs post seizure or delivery
Can have a seizure up to 6 weeks after delivery - continue labetolol 2 weeks after delivery

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

HELLP syndrome

A

Presentation
N+V
RUQ pain
Lethargy

Haemolysis
Elevated
Liver enzymes
Low 
Platelets
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Labour definition

A

Onset of painful and regular contractions

Cervical dilatation and effacement
May be ROM

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q
Examples of 
Presentation 
Presenting part 
Position 
Attitude 
Lie 
Engagement
Station
A

Presentation - the foetal part that is the lowest eg cephalic
Presenting part - what is in the canal + palpable
Position - OA/OT/OP
Attitude - face, brow, vertex
Lie - cephalic, oblique, transverse - where it is in the longitudinal plane
Engagement - widest part has passed through the pelvic brim
Station - where in the pelvis the head is (in relation to ischial spine)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Labour overview of timings

A

Stage 1 - dilation
Latent - 0-3cm - 6hrs
Active 3-10 2cm/hr for multips, 1cm for nullips

Stage 2 - delivery of foetus 
Passive - few mins 
Active - active pushing 
20m for multips 
40m  for nullip

Stage 3 - delivery of afterbirth
15 mins

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Movements in labour

A

1) Engage in OT
2) Descend in flexion
3) Internal rotation to OA
4) Descend in OA
5) Crowning
6) Delivery via extension of head
7) Shoulders internal rotate to AP
8) Head restitutes
9) Shoulders delivered by lateral flexion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Induction of labour

Indications
Methods
Contraindications
Complications

A

Indications

  • Post-date
  • IUGR
  • Maternal - diabetes/ eclampsia

Methods
Assess bishop’s score
1) Prostaglandin E2 - inserted in post. fornix of vagina
2) ARM - amniotic hook + oxytocin - beware strong contractions
3) Cervical sweep

Contraindications 
Maternal - something in the way 
Vasa previa 
Placenta previa 
Cord prolapse 
Uterine mass 

Foetal - distress, abnormal lie

Complications

  • painful long labour
  • Oxytocin use –> foetal distress
  • PPH
  • Cord prolapse
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Bishops score

A

Cervical

  • Dilatation
  • Effacement
  • Consistency
  • Position

Foetal station

<6 - consider induction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Prolonged labour

Definition + causes

A

Definition
Stage 1 active
= <2cm/4hrs

Stage 2 active:
Consider in 1, diagnose in 2hrs in nullip
Consider in 30, diagnose in 1hr in multips

Causes - the Ps!!
Power
- Uterus is not strong - nulliparous - insufficient uterine contractions
- Maternal exhaustion eg cardiac disease
Passenger - malpresentation/abnormal lie
Passage - CPD

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Management of prolonged labour

A

Power - augmentation
Amniotomy - ROM - then if no cervical dilation in 2hrs –>
Oxytocin

Passenger - if malpresentation forceps/ventouse/CS

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Preterm labour

Definition 
Aetiology 
investigations
Management 
Complications
A

Definition
Labour in 24 - 37weeks

Aetiology 
Too much in the castle 
- MulityP, polyhydramnios
Defence mechanism - IUGR, maternal illness, chromosomal abnormalities
Wall breach - cervical incompetency 
Enemy - infection

Management
Prevention -cervical cerclage
Progesterone
Foetal reduction

investigations
- Foetal fibronectin 
- TVUS - cervical length
- CTG 
- swab for infection
Actual 
- Steroids 
- Tocolytics - give time for steroids to work
- magnesium 

Complications
Foetal
- RDS

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Investigations for premature labour

A

Foetal fibronectin
TVUS - cervical length
CTG
Swabs for infection

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Pre-term rupture of membranes

Aetiology
Management

A

Aetiology

  • idiopathic
  • Cervical incompetency
  • Infection

Management
- Abx –> 24hrs later - induce labour

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

PPROM

Aetiology
Management

A

Aetiology
- idopathic

Management

  • Admit + monitor
  • Steroids
  • Abx - erythromcyin
  • deliver
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Forceps Indications Prerequisites
Indications /why - Prolonged labour - Foetal distress but cannot CS - reduce maternal exhaustion ``` Prerequisites Fully dilated OA Ruptured membranes Cephalic Empty bladder Pain relief S - pelvic ```
26
Cord prolapse ``` Aetiology Presentation Investigations Management Complications ```
``` Aetiology - Baby not ready Malpresentation Polyhydramnios Premature Multiple pregnancy ARM Uterine abnormalities Vasa previa Placenta previa ``` Presentation - Foetal distress of CTG - V/E - can see or palpate cord Investigations - V/E/CTG Management - Trendelenberg - Tocolytics - Push back up and wait to immediately deliver - CS - If past interoitus --> keep warm + moist don't push back in Complications - Foetal - hypoxia/ CP/ death
27
CTG findings, normal etc and management of abnormal readings
Normal - non reassuring - abnormal Baseline - 110-160 // 110-100 or 160-180 // >180 or <100 Variability - >5/ <5 for 40-90 mins - <5 for >90 mins Accelerations - should be present Decels - early/ variable/late 1 non reassuring LLP Fluids O2 and monitor 2 non reassuring or 1 abnormal FBS 2 abnormal or brady <100 for >3 mins - C1CS
28
Foetal distress Definition Aetiology Diagnosis Management
Definition - foetal hypoxia ``` Aetiology Not enough direct blood supply: - APH - Cord prolapse Excessive uterine contractions eg in oxytocin prolonged labour ``` Diagnosis - CTG - Meconium stained liqour - premature labour Management LLP, O2, fluids Terbutaline / stop oxytocin Vaginal exam - exclude prolapse - FBS >7.2 - reassess or if maternal deterioration - another sample - if no improvement - CS FBS >7.2 - C1CS
29
Uterine rupture RF Presentation Rx
RF - VBAC - main - Multiple pregnancy - Previous surgery Presentation - Cessation of uterine contractions - PPH - Abdo pain - Foetal distress - Shock etc Rx - Immediate delivery - Surgical repair +/- hysterectomy
30
PPH ``` Definitions Presentation Aetiology Prevention Management ```
Definitions Blood loss of >500ml or 1000ml in CS Primary <24 hrs Secondary 24hrs - 2 weeks Presentation - Blood innit ``` Aetiology - the Ts TONE - Uterine atony - most common cause - commonly seen in: Multiparous Multiple pregnancy / polyH ``` TISSUE - retained placenta (common cause of secondary - and common in accreta etc) TRAUMA - Forceps - CPD - Shoulder dystocia - Macrosomia THROMBIN - coag disorders Prevention - Offer all mothers syntocinon for 3rd stage ``` Management ABC IV access IV syntocinon +/- ergotramine (CI HTN) Look at uterus under anaesthesia IM carboprost (CI asthma) Surgical - Uterine artery embolisation - B lynch suture - Iliac artery embolisation - Hysterectomy ``` remember in secondary give Abx as endometritis is a main cause (along with retained placenta) + do ERPC if needed
31
Shoulder dystocia Aetiology/RF Rx Complications
Aetiology/RF - Macrosomia - Maternal obesity/ diabetes - CPD - Maternal exhaustion/ prolonged labour ``` Rx - HELPERRR Help - call for help Evaluate need for episiotomy Legs in McRoberts Pressure - suprapubic Enter pelvis Rotate - wood screw maneouver Release posterior arm Restitution - head back inside and --> CS - zavanelli ``` Complications Maternal -PPH, shock, psychological, tears Foetal Erbs, clavicle frac, hypoxia, death
32
Breech Types Causes Management Complications
Frank - buttocks Footling - feet first Causes - Preterm labour - Multiparous - Polyhdramnios - Uterine abnormalities Management - <36w - normal - >36w - ECV - remember this is a sensitising event - give Anti D if needed Plan CS at 38/9w - but can deliver vaginally if mother wishes to Complications - Cord prolapse - Clavicle # - brachial plexus palsy - DDH Maternal - PPH - Prolonged labour
33
VBAC Contraindications Complications
Contraindications Classical scar >2 previous CS Prev uterine rupture Complications - Uterine rupture - Need for emergency CS Factors with successful outcome - <2 years between pregnancies - Spontaenous labour - Low age - Low BMI
34
Contraindications for VBAC
Classical scar >2 previous Prev uterine rupture
35
Polyhydramnios ``` Cause Presentation Multiple Management Complication ```
Causes >10cm pools of liqour Presentation Taut uterus Foetus difficult to palpate Large for dates Multiple pregnancy Feotal cardiac/renal abnormality Rx - amnioreduction ``` Complications Cord prolapse Malpresentation Premature PPH as --> uterine atony ```
36
Oligohydramnios
Causes <500 at 32-36w ``` causes PROM post date Pre-eclampsia Foetal renal problem IUGR ```
37
Polyhydramnios ``` Cause Presentation Multiple Management Complication ```
Causes >10cm pools of liqour ``` Presentation Taut uterus Foetus difficult to palpate Large for dates Maternal dyspnoea/SOB ``` Multiple pregnancy Feotal cardiac/renal abnormality Rx - amnioreduction Complications Cord prolapse Malpresentation Premature
38
Oligohydramnios
Causes <500 at 32-36w ``` causes PROM post date Pre-eclampsia Foetal renal problem IUGR ```
39
Diabetes in pregnancy Definition Rx Complications
Obs diabetes: 5. 8 - fasting 7. 8 - random Rx - Diet etc for 2 weeks --> - Stop all except metformin or insulin - Folic acid ``` Complications Abnormalities - NTD, heart defects - labour Macrosomia + friends (shoulder dystocia, PPH,) IUGR Preterm labour Polyhydramnios Transient hypoglyaemia fo newborn ``` For mother - pre-eclampsia - PPH - Polyhydramnios
40
Overview of post partum psych
Baby blues peaks at 5 days, usually over by 10 PPD 1m - 3m Paroxetine Edinburg depression score Post partum psychosis 2-3 weeks Abrupt change in mental state
41
Rhesus disease
Rh-ve mother Rh +ve baby - worrying in the second pregnancy Give anti D at 28 weeks or a sensitising event ``` TOP Miscarriage >12w Ectopic ECV Still birth Amnio/CVS APH FBS ``` ``` Haemolytic disease of the newborn Oedema Jaundice hepatosplenomegaly Kernicterus HF Anaemia ```
42
Chorioamnionitis
Infection of placenta RF - PPROM ROM and FOUL SMELLING can cause preterm Give Abx + deliver foetus
43
GBS
Offer IV abx IF - Previous GBS - Pyrexia - Premature Offer abx for GBS in all preterm labour Foetal complications Meningitis Sepsis Stillbirth Ben pen
44
VTE
If suspect give LMWH USS/doppler CTPA/VQ scan
45
Anaemia in pregnancy definitions when to test cut offs Rx
booking 28w Cut offs 1st tri <110 2nd+3rd tri: <105 Post partum <100 Rx - oral ferrous sulphate
46
Amniotic fluid embolism
cause Induction of labour ^ maternal age SOB Chest pain cyanosis Rx - supportive can do pulmonary artery catheterisation if really unstable
47
Maternal teratogenic infections
``` CHRIST CMV - hearing, visual, growth,skin Herpes - herpes infantum Rubella - heart, cataract, hearing Syphilis - stillbirth Toxoplasmosis - cerebral calcification ```
48
Caesarean Indications Risks
``` Indications Maternal - APH - vasa prev, previa, accreta, abruption - Pre-eclampsia Foetal - IUGR - Foetal distress - Uncorrectable malpresentation - Twins - Cord prolapse ``` ``` Risks Maternal - Haemorrhage - Infection - VTE - Anaesthetic risk - Injury eg bladder ``` Late maternal - Accreta - Uterine rupture in VBAC - Need for another CS Foetal - RDS - Injury
49
Breast problems
Galactocoele Pres - lump, no systemic features, no erythema, painless - usually after they have stopped feeding Management - N/A Mastitis Pres - erythema, painful lactation (before feed) Management - KEEP FEEDING + NSAIDS or abx - fluclox if nipple fissure, milk test +ve, not gone after 12-24hrs Abscess Pres - systemic features, lump, pain Management - abx Engorgement usually bilateral - pain + discomfort before the feed Express milk to releive discomfort
50
maternal diabetes
Fasting 5.6 | Random 7.8
51
Macrosomia vs large for test age
Macrosomia >4.5 or >4 for preterm Foetus larger than 90th percentile
52
Management for existing diabetics in pregnancy
Folic acid – pre-conception to 12 weeks (5mg) Stop all oral except metformin Continue insulin if needed
53
Turtle neck is a sign of what
shoulder dystocia
54
Post natal care for gestational diabetes
Do fasting plasma glucose within 13 weeks of delivery and annual HbA1c
55
Labetolol cut off
150/90
56
Rx eclampsia
``` ABC LLP Magnesium IV labetalol/ hydralazine Deliver the baby ```
57
Types of miscarriage
Presentation/ Types Threatened - cervical os closed, small painless PV bleed, foetal pole intact Inevitable Cervical os open PV bleed - may be larger, may be passing clots Incomplete - Cervical os open, large PV bleed - uterus is still large Missed/delayed empty gestational sac Cervical os closed Complete Cervical os closed, clots have passed, no foetal parts Small uterus
58
Bleed in ectopic vs miscarriage
Miscarriage = painless Ectopic = painful and dark brown
59
Abortion act
1) Would endanger woman's life 2) Carrying on is > risk than risk of termination 3) Risk to health of children 4) Mental or physical health would suffer if she carried on 5) The child born would be severely disabled/mentally handicapped
60
Vasa praevia presentation
Triad PV bleed Foetal bradycardia ROM
61
Rx vasa praevia
ROM --> deliver C1CS | No ROM --> Induce at 36w
62
Pre-eclampsia RF
``` Aetiology/ RF High risk CKD Autoimmune HTN in previous pregnancy Diabetes Chronic HTN ``` ``` Intermediate risk FHx First pregnancy Multiple pregnancy BMI >35 Age >40 Interval between pregnancies >10 years ```
63
Pre-eclampsia complications
- Eclampsia - HELLP - DIC - liver failure/ renal failure - Pulmonary oedema - Death Foetal - IUGR - Prem delivery - Placental abruption risk
64
definition of prolonged labour
Definition Stage 1 active = <2cm/4hrs Stage 2 active: Consider in 1, diagnose in 2hrs in nullip Consider in 30, diagnose in 1hr in multips
65
Example of a tocolytic
Terbutaline
66
foetal blood scalp limit (number)
7.2
67
Uterine rupture | Presentation
Cessation of contractions Abdo pain Foetal bradycardia PPH
68
Diabetes teratogenic effects
NTD, heart defects
69
Rh combination we worry about
Rh-ve mother and +ve baby in 2nd pregnancy/ after sensitising event
70
When to give anti D
28w | Or sensitising event
71
Symptoms of Rhesus disease of the newborn
Hydrops foetalis ``` Haemolytic anaemia Jaundice - kernicterus Hepatosplenomedaly Oedema HF Anaemia ```
72
When to give GBS abx
Previous GBS Premature Pyrexia (in labour)
73
induction of labour complications
painful long labour Oxytocin use --> foetal distress PPH Cord prolapse Amniotic fluid emboli