NUR 106 Drugs Study Guide with Questions and Correct Answers
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Course
NUR 106
Institution
NUR 106
Magnesium sulfate anticonvulsant, tocolytic Decreases acetylcholine releases and depresses the cns to act as anticonbulsant, also decreased uterine contractions Used to prevent and contro seizures in preeclampsia and prevention of uterine contractins in preterm labor Counteract pitocin Dosage: iv b...
NUR 106 Drugs Study Guide with
Questions and Correct Answers
Magnesium sulfate ✅anticonvulsant, tocolytic
Decreases acetylcholine releases and depresses the cns to act as anticonbulsant, also
decreased uterine contractions
Used to prevent and contro seizures in preeclampsia and prevention of uterine
contractins in preterm labor
Counteract pitocin
Dosage: iv bolus loading dose(piggyback) of 4 grams over 20 min followed by
continuous infusion of 1-2 gr/hr with infusion pump
Excreted by kidneys
Adverse reactions: flushing, sweating, hypotension, depressed dtr, cns depression,
respiratory depression
Nursing care: monitor p,r,bp, uo,loc,dtr's and heart and breath sounds q1hr
Stop if r<12, up<30ml/hr, absent dtr
Antidote: calcium gluconate
Oxytocin(pitocin, syntocin) ✅oxytocic
Indications: labor induction or augmentation, facillitation of threatened abortion,
postpartum control of bleeding after expulsion of placenta, nasal spary to facilliate milk
let down reflex
Actions: stimulates uterine smooth muscles to contract, let down reflex by breast, has
adh and vasopressor effects
Rapidly metabolized by liver and kidneys, half life only 3-9 min
Contraindications and precautions: hypersenitivity, cpd(celfo-pelvic disportion)
Adverse effects: seizures, coma with iv use, water intoxication, increased bp, tetanic
uterine contractions in labor with decreased blood flow to placenta, abruptio
Antidote: magnesium sulfate(relaxes the uterus)
Route and dosage oxytocin ✅for labor induction/agmentation
1-2 milliunits/min until contractions 2-3 min apart(no more than 5 in 10 min)
Goal: contractions q2-3 min lasting 45-60 sec with at least 30 sec intervals between
each contractions
Stop if contractions exceed 5 in 10 min or last longer than 90 sec or if fetal distress
occurs
Infusion pump always used
Piggyback so can be stopped prn
Monitor contractions and fht
Terbutaline (brethine) ✅adrenergic, tocolytic (unlabeled)
Indication: supress uterine activity, management of preterm labor
Action: beta 2 adrenergic effects to surpress uterine activity, can delay delivery up to 3
days
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