Hypertension in Pregnancy Flashcards

1
Q

Different types of HTN associated with Preg (7)

A
  • Gestational Hypertension
  • Mild Preeclampsia
  • Severe Preeclampsia
  • Eclampsia
  • HELLP syndrome
  • Chronic Hypertension: diagnosis of HTN prior to pregnancy and no protein
  • Chronic Hypertension with superimposed preeclampsia –> protein in urine is diagnostic for preeclampsia
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2
Q

Hypertension in pregnancy is a continuum based on…..

A

end organ effects

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3
Q

How does HTN cause damage to the body? What organs end up being effects?

A
  • Vasospasm in vasculature leads to poor tissue perfusion
  • Poor tissue perfusion
  • Endothelial cell damage

Organs effected: CNS, Liver, Electrolytes, Lungs, Kidneys, Placenta, Clotting

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4
Q

Risk factors for HTN in preggos (9)

A
• Maternal age <19 or >40 
• 1st pregnancy
• extreme obesity
• Multifetal pregnancy 
• Chronic Kidney Disease
• Chronic Hypertension
• Family history of preeclampsia
• DM 
• Underlying autoimmune disorders: 
	◦ Rheumatoid Arthritis 
	◦ Systemic Lupus Erythematous
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5
Q

Onset: after 20 weeks gestation
◦ 140/90 mm Hg or > on 2 different occasions; at least 4 hours apart
◦ No proteinuria

What type of HTN is this?

A

Gestational HTN

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6
Q

diagnosed w/ HTN prior to 20 weeks gestation/before pregnancy is what kind of HTN?

A

Chronic HTN

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7
Q

Onset: >20 weeks
◦ 140/90 mm Hg or > on 2 different occasions; at least 4 hours apart
-proteinuria > or =1+

What kind of preggo HTN is this?

A

Mild Preeclampsia

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8
Q

s/s client may report with mild preeclampsia

A

◦ Transient headache
◦ Irritability
◦ Edema

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9
Q

interventions for mild preeclampsia

A

manage at home, RN does a lot of education on notifying provider of changes

◦ increase in BP –> call provider
◦ Bedrest, daily weight
◦ Education for all HTN preg clients: side lying position to allow optimal placental perfusion
◦ Diet- avoid high sodium, alcohol, tobacco, caffeine
◦ kick count

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10
Q

protein in urine will occur 20 weeks or after with a client who already has HTN

What kind of preggo HTN is this?

A

Chronic HTN + superimposed preeclampsia

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11
Q

• BP 160/110 mm Hg or >
◦ Proteinuria > 3+

What kind of preggo HTN is this?

A

severe preeclampsia

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12
Q

s/s of kidney involvement with severe preeclampsia (3)

A

◦ Proteinuria > 3+
◦ Oliguria
◦ Elevated serum creatinine >1.1 mg/dL

POE

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13
Q

CNS involvement with severe preeclampsia? (2)

A

◦ Cerebral or visual disturbances, headache and blurred vision
◦ Hyperreflexia with possible ankle clonus (jerking) when dorsiflex foot

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14
Q

What kind of edema do we see with severe preeclampsia?

A
  • pulmonary
  • extensive peripheral edema
  • facial edema
  • dependent edema
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15
Q

why do you have peripheral edema with severe preeclampsia?

A

arterioles vasospasm –> damage in endothelium –> leakage of intravascular fluid into interstitial spaces

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16
Q

Does severe preeclampsia jack up your liver?

A

YES!
◦ elevated liver enzyme (2x normal)
◦ Epigastric and right upper-quadrant pain due to liver inflammation

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17
Q

What does severe preeclampsia do to your blood components? why do I care?

A

• Thrombocytopenia - platelets <100,000

◦ decreased ability to clot, risk of hemorrhage

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18
Q

Severe preeclampsia- what are the s/s ?? (BP + 6 other systems)

A
  • BP 160/110 mm Hg or >
  • Kidney involvement: ( Proteinuria > 3+, Oliguria, Elevated serum creatinine >1.1 mg/dL)
  • CNS (visual disturb, ankle clonus)
  • Edema (lungs, face, peripheral)
  • Liver (increase enzymes/ RUQ pain)
  • Thrombocytopenia
  • N/V
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19
Q

management of severe preeclampsia?

A
  • Managed in hospital
  • Daily Weight
  • I&O
  • Encourage rest
20
Q

Deep tendon reflex scoring? 1-4: what do they mean?

A

◦ 0 = no response
◦ 1+ = sluggish or diminished
◦ 2+ = active or expected response
◦ 3+ = more brisk than expected, slightly hyperactive
◦ 4+ = brisk, hyperactive with intermittent or transient clonus

21
Q

Seizure precautions for preecplamsia/eclampsia include:

A

O2 10L/min face mask, turn on side, suction equipment, not seizure onset/duration, IV access, lights low/diminished stimulation

22
Q

what are risks to fetus due to preeclampsia/eclampsia

A

IVGR (growth restriction), premature birth, placental abruption, fetus cannot tolerate labor due to decreased perfusion, born as still birth

23
Q

What are s/s of eclampsia?

A

• Manifestations of severe preeclampsia

+ Onset of seizure activity or coma !!

24
Q

Warning signs for possible convulsions?

A

◦ Frontal Headache
◦ Severe epigastric pain
◦ Hyperreflexia/ clonus
◦ Hemoconcentrations - blood components are increased

25
Q

what is a normal fetal HR?

A

110-160

26
Q

• variant of GH in which hematological conditions coexist with severe preeclampsia involving hepatic dysfunction

A

HELLP Syndrome

27
Q

Does HELLP syndrome always occur with gestational hypertension?

A

no! can occur w/o it

28
Q

H in HELLP stands for…

A

• H: Hemolysis
◦ Anemia
◦ Jaundice

29
Q

EL in HELLP stands for…

A

• EL: Elevated liver enzymes (due to decrease blood flow –> damaged liver)
◦ Elevated ALT or AST (> 2X normal)
◦ Epigastric pain
◦ Nausea and Vomiting

30
Q

LP in HELLP stands for…

A

• LP: Low platelets ( <100,000)

31
Q

s/s of low platelets/ concerns

A

◦ Bleeding gums
◦ Petechiae
◦ Possibly DIC

32
Q

Does HELLP occur in intrapartum or postpartum time?

A

BOTH

• About 1/3 of cases occur in immediate postpartum timeframe so monitor your post delivery preggos

33
Q

3 antihypertensives they use in preggos

A

◦ labetalol, nifedipine, hydralazine

34
Q

which antihypertensive can cause a false + for COOMBs test?

A

labetalol in my notes

methyldopa online/practice question

35
Q

We don’t use labetalol in patients with which other condition?

A

asthma

36
Q

Don’t use Magnesium Sulfate with which antihypertensive and why?

A

‣ nifedipine –> can cause skeletal muscle blockade –> cardiac arrest

37
Q

Seizure med of choice for preggos with preeclampsia/ eclampsia?

A

Magnesium Sulfate

38
Q

What does Mag Sulfate do?

A

• Depresses the CNS to prevent and treat seizures

39
Q

Mag sulfate side effects to educate your preggo about?

A

◦ when first start, client will report feeling flush and hot initially, nauseated, sedated
◦ sedating effect , muscle weakness, headache, oliguria side effect –> will have foley cath

40
Q

Very important assessment for Mag Sulfate administration or changes in administration?

A

Resp status

41
Q

S/s of Mag Sulfate toxicity?

A
  • CNS depression!!
◦ kidney function, if <30mL output/hour --> stop the mag (kidneys need to be able to excrete it)
◦ loss of deep tendon reflex 
◦ respiratory depression (<12)
◦ bradycardia/arrhythmias 
◦ Stop the infusion! notify provider
42
Q

Normal, Therapeutic and Toxic levels of Magnesium Sulfate

A
Normal= 1.5-2
Therapeutic = 4-7
Toxic = >8
IDK if we need to know all these specifics... I thinks its too much 
ECG changes = 5-10 
Loss of reflexes = 8-12
Respiratory Distress = 15
Cardiac Arrest = 25
43
Q

Antidote for Magnesium Sulfate

A

• Calcium gluconate or calcium chloride

44
Q

How do we admin calcium gluconate as antidote for Mag Sulfate?

A

◦ 10 ml/min until sxs are reversed

45
Q

This was a hard section- GOOD JOB!

What is it called when a hospital runs out of maternity nurses?

A

A mid-wife crisis