Class 2: blood pressure issues Flashcards

1
Q

what are gestational conditions

A

disorders that did not exist before pregnancy

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2
Q

what is pre eclampsia

A

basically vasospasm in spiral arteries. They get fibrous and constricted (they should be dilated)
this results in less blood flow getting to fetus
fetus then produces pro-inflammatory proteins that damage endothelial cells and lead to vasoconstriction and salt retention (which increases BP)

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3
Q

what is one test that tests for pre-eclampsia

A

urine test for protein uria

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4
Q

what is non-severe HTN in pregnancy

A

> 140/>90

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5
Q

how should you measurer BP in pregnant person

A

taken at least 15 mins apart, after 5 mins of rest
if both values are high take the higher one

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6
Q

what is severe HTN in pregnancy

A

> 160
110

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7
Q

how soon should you treat a pregnant person with severe HTN

A

treat as an emergency, should be treated within 30-60 mins (if you were to prioritise it would be this first unless someone was literally bleeding out)

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8
Q

what is superimposed pre-eclampsia

A

someone who develops pre eclampsia who already has HTN (instead of the other way around where the constricted spiral arteries lead to HTN)

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9
Q

what are the main risk factors for pre eclampsia

A
  • been a long time since last period (or no period at all)
  • any fam history or personal history with pre eclamsea or weird birth
  • heavy: DM, increased BMI, sleep apnea
  • kidney issues or clotting issues or chronic HTN
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10
Q

draw mind map of how pre eclampsia happens

A
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11
Q

what value of proteinuria indicates pre eclampsia in a pregnant person

A

0.03g/L or more in at least two random urine specimens
collected 6 hours apart
no evidence of UTI

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12
Q

what is the cure to pre-eclampsia

A

getting the placenta out

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13
Q

what is eclampsia

A

seizures in women diagnosed with pre-eclampsia with no other history that would explain the seizures

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14
Q

what are the specific symptoms of eclampsia

A

headache
severe epigastric pain
hyperreflexia

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15
Q

what are the main symptoms of HELLP syndrome

A

(remember its hemolysis, elevated liver enzymes and Low platelets, comes from pre-eclampsea)
fatigue
RUQ pain
Dizzy
lots of Nausea and vomiting

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16
Q

what are the main things we do to manage HTN in pregnancy

A

blood pressure control
lifestyle changes (exercise, diet)
monitor for pre-eclamsea
seizure prophylaxis
planning for timing of delivery
postpartum surveillance
get fetus as big as possible before inducing labour

17
Q

what is the goal of Diastolic BP in pregnancy and why

A

above 85 because we want to maintain blood flow to the fetus

18
Q

what are the two antihypertensives to avoid with pregnancy

A

ACE inhibitors and ARB (anything with RAAS rlly because its a slippery slope)(

19
Q

what are the four antihypertensives usually given to preggos

A

-labetolol
hydralazine
nifedipine
methyldopa

20
Q

what medication is ordered for seizure prevention

A

magnesium sulfate

21
Q

what are some things you should do to manage Hypertensive pregnancy patients in the hospital

A

BP control, meds, seizure precautions, continuous fetal monitoring, prepare for birth

22
Q

what does magnesium sulfate do for pre eclampsia and HTN in pregnancy

A

prevents seizure. should be given in all cases of severe or sustained HTN (over 160/110)

23
Q

what is the usual dosing for magnesium sulfate

A

4g IV loading dose over 13 mins, piggy back
then 1g/hr continuous infusion maintenance IV

24
Q

what are some adverse effects we need to watch for in a preggo getting magnesium sulfate

A

watch for low HR, low RR< low kidney function, low reflexes because it basically stops all high frequency activity in the body

25
Q

can you leave ppl on magnesium sulfate alone?

A

no

26
Q

what is the antedote for magnesium toxicity

A

calcium gluconate

27
Q

how often should you monitor vitals with someone on magnesium sulfate

A

every 30 mins

28
Q

how often should you monitor urine output with someone on magnesium sulphate

A

every hour

29
Q

how often should you monitor reflexes with someone on magnesium sulfate

A

upon completion of loading dose and every hour while on therapy

30
Q

on magnesium gluconate, when should you apply continuous fetal monitoring

A

when theyre over 26 weeks gestation

31
Q

signs of magnesium toxicity

A
32
Q

what are some intervetions after a seizure

A

suction
O2 at 10L
insert IV and run IV fluid
monitor FHR
prepare for birth (siezure can trigger labour)
risk for placental abruption

33
Q

when should labour happen for someone with chronic HTN

A

should be planned around 38-39 weeks to minimize risk

34
Q

when should labour happen for gestational HTN

A

37 weeks to reduce progression into preeclampsiia

35
Q

when should labour happen for someone with pre-eclampsia

A

should happen 34-37 weeks, but ideally as soon as possible after its been diagnosed

36
Q

why would magnesium sulfate increase risk of haemorrhage

A

because they stop contraction of the uterus which is needed to stop hemmorhage