OB (5/10) Flashcards

1
Q

s/e of terbutaline for tocolysis

A
  1. tachycardia
  2. increased blood glucose
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2
Q

__________________ is a tocolytic that relaxes vascular and bronchial smooth muscles

A

magnesium

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3
Q

use of magnesium in OB

A
  1. pre-eclampsia
  2. tocolysis
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4
Q

dose of magnesium for tocolysis or pre-eclampsia

A

4-6 gm IV bolus over 20 minutes

2-4 gm/hr infusion

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5
Q

if your pregnant pt is on magnesium, what blood level would be therapeutic

A

4-8 mg/dL

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6
Q

s/e of magnesium for tocolysis/pre-eclampsia

A
  1. hypotension
  2. flushing
  3. lightheaded
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7
Q

_________________ is a opioid receptor agonist/antagonist used in OB. chemically related to naloxone and oxymorphone

A

nubain (nalbuphine)

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8
Q

what drug would you use to reverse the pruritus from epidural opioids but maintain the analgesia in pregnant mom

A

nubain (nalbuphine)

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9
Q

what drugs are opioid agonist/antagonists commonly used in OB

A
  1. nubain (nalbuphine)
  2. stadol (butorphanol)
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10
Q

dose of stadol (butorphanol)

A

0.5-2 mg q3-4 hours

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11
Q

dose of zofran for N/V in laboring mother

A

4 mg

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12
Q

dose of phenergen in laboring mother for N/V

A

12.5-25 mg IV q4-6 h

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13
Q

use of benadryl in OB

A
  1. pruritus
  2. cervical “swelling”
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14
Q

dose of benadryl in OB

A

12.5-50 mg

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15
Q

what is zyrtec used for in OB

A

for itching 2/2 neuraxial opioids

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16
Q

dose of zyrtec for itching in OB

A

10 mg

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17
Q

dose of phenylephrine for parturient

A

10-30 mcg

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18
Q

if mom is hypotensive, but has a HR of 60, what pressor would you use

A

ephedrine

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19
Q

if mom is hypotensive and has a HR of 120 what pressor would you use

A

phenylephrine

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20
Q

which pressor used in OB can compromise uterine blood flow

A

phenylephrine

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21
Q

how do you mix phenylephrine in the OB setting

A
  1. 10 mg/mL vial
  2. take 10 mL NS and 1 mg (0.1 mL) of drug
  3. = 100 mcg/mL
22
Q

infusion dose of phenylephrine in OB

A

30 mcg/min

23
Q

usual dose of ephedrine in OB

A

5-10 mg

24
Q

how do you mix ephedrine for OB

A
  1. 50 mg/mL vial
  2. take 9 mL add 50 mg
  3. = 5 mg/mL
25
Q

_______________ if used for hypotension in the mother will also cause increase in fetal HR

A

ephedrine

26
Q

_________________ is the process of strong contractions that thin the cervix permitting passage of fetus through the birth canal

A

parturition

27
Q

full term pregnancy

A

40 weeks +/- 2 weeks from LMP

28
Q

true labor is defined as?

A

braxton hicks contractions that increase in strength and frequency into a regular pattern

29
Q

T/F: true labor is always defined as amniotic membranes rupture spontaneous then contractions start to follow

A

false; while this can happen sometimes contractions begin and first and cause the membranes to rupture

30
Q

gravida

A

number of pregnancies (delivered or not)

31
Q

para

A

number of pregnancies delivered past 20 weeks

32
Q

primigravida

A

a woman who is pregnant for the first time

33
Q

multigravida (multiparous)

A

2+ pregnancies

34
Q

grand maltip

A

5+ pregnancies

35
Q

who is at higher risk of hemorrhage the primigravida or the multigravida

A

multigravida d/t uterus being “old and stretched out” so does not clamp down the way it should

36
Q

what is the first stage of labor

A

begins with regular painful uterine contractions and ends with complete dilation of cervix

37
Q

what is the pain pathway for the first stage of labor

A

uterocervical afferents pass through paracervical ganglion, hypogastric nerve, and lumbar sympathetic chain entering spinal cord in the T10 - L1 area

38
Q

during the first stage of labor, you would want to ensure your epidural has coverage over what area

A

T10-L1

39
Q

which stage of labor is described as “visceral pain”

A

first stage

40
Q

______________ is described as the final phase of the first stage of labor

A

transition phase

41
Q

the transition phase of labor is categorized when the cervix is _________ cm dilated

A

7-10

42
Q

second stage of labor begins with ____________ and ends with ______________

A

complete dilation of cervix; birth of the baby

43
Q

pain pathway for the second stage of labor

A

additional afferent innervate the cervix, vagina, perineum and pass througth the pudendal nerve at S2-S4 and are processed in the spinal cord

44
Q

which stage of labor is described as “somatic pain”

A

second stage

45
Q

third stage of labor begins with ___________ and ends with __________

A

birth of the baby; delivery of the placenta

46
Q

you have given mom and epidural and it has been has been working wonderfully, suddenly she starts to call out and c/o pain and pressure in her bottom - what do you think is occuring

A

she has entered transition phase of labor,

should ask nurse to check cervix

47
Q

what is normal fetal HR

A

110-160

48
Q

fetal HR should have variability between __________ bpm

A

6-25

49
Q

absence of fetal heart rate variability is associated with what?

A

fetal distress

50
Q

dose of nubain (nalbuphine)

A

10 mg IV/IM/SQ/PCA