Trauma in pregnancy and intimate partner violence Flashcards
Hypervolemia in a pregnant person is characterised by an increase of how much
1.0 to 1.5 L/min, after the 10th week of pregnancy
due to increased plasma volume and decreased vascular resistance
The uterus grows to poke above the pelvic in which week of pregnancy
12th
Signs of peritoneal irritation are more or less obvious in pregnant people
Less
In pregnant person, decrease in maternal intravascular volume can cause what
reduction in foetal oxygen due to increased vascular resistance in the uterus
despite reasonably normal maternal vital signs
Blood parts that increase in pregnancy
Plasma volume
RBC volume
WBC count
Serum fibrinogen and other clotting factors
CO2, O2
Blood parts that decrease in pregnancy
Haematocrit
Prothrombin time
Bicarbonate
Change to HR in pregnancy
Increases by approx 15 bpm in later stages
BP changes in pregnancy
Decreased in second trimester
Near normal at term
ECG changes in pregnancy
T wave changes in leads III and aVF
More ectopics
Respiratory changes in pregnancy
Hypocapnia common in late pregnancy (increased tidal volume)
Fetus sensitive to maternal hypoxia
Aim 95%+
GI changes in pregnancy
Gastric emptying delayed so consider early gastric tube decompressoin
Intestines shifted to upper part of the abdomen, may be shielded by uterus
Urinary system physiological changes in pregnancy
GFR and renal blood flow increase
Creatinine and urea fall to approximately half of pre-pregnancy level
MSK/vascular change in pregnancy
Large, engorged pelvis vessels around uterus
- could cause massive retroperitoneal bleeding after blunt trauma with associated pelvic fractures
Signs of eclampsia
Seizures
Hypertension
Hyperreflexia
Proteinuria
Peripheral oedema
Signs of placental abruption
Vaginal bleeding
Maternal abdo pain or cramping
Hypovolemia
Uterine tenderness
Frequent contractions
Uterine tetany
Uterine irritability
Signs of uterine rupture
Abdo tenderness, guarding, rigidity or rebound tenderness
Abdominal fetal lie
Easy palpation of fetal parts
Inability to palpate fundus
Administer Rh immunoglobulin therapy to pregnant trauma patient if
Rh negative mother
unless injury is very remote from the uterus