OB ANESTHESIA QUIZ

1. A 16-year-old, anxious, preeclamptic patient in active labor develops back pain after the placement of an epidural for labor analgesia. The pain is severe, and the patient has more weakness of the legs than expected. The most appropriate course of action at this time would be to

• Inject a higher concentration of a local anesthetic or add intravenous (IV) narcotics

• Replace the epidural and use epidural narcotics to decrease the motor weakness

• Reassure her that she will get better with delivery

• Consult a neurosurgeon

Normal fetal heart rate (FHR) is

• 60 to 100 beats/min

• 90 to 130 beats/min

• 110 to 160 beats/min

• 150 to 200 beats/min

Drugs useful in the treatment of uterine atony in an asthmatic patient with severe preeclampsia include

• Oxytocin (Pitocin) only

• Ergonovine (Ergotrate) or methylergonovine (Methergine) only

• 15-Methyl prostaglandin F2伪 (PGF2伪 ) (Carboprost, Hemabate) only

• All of the above are safe and can be used alone or in combination with the others

   

Cardiac output is GREATEST

• During the first trimester of pregnancy

• During the third trimester of pregnancy

• During labor

• Immediately after delivery of the newborn

Which of the following lung volumes or capacities change the LEAST during pregnancy?

• Tidal volume (Vt )

• Functional residual capacity (FRC)

• Expiratory reserve volume (ERV)

• Vital capacity (VC)

All are true regarding physiologic changes in pregnancy except;

• Typical diastolic ejection murmur

• S1 heart sound accentuated

• Possible S3 and S4 heart sounds, no clinical significance

• Leftward displacement of PMI

The initial increase in cardiac output associated with pregnancy is due to;

• Heart rate

• MAP

• Stroke Voume

• Venous capacitance

This hormone is responsible for inhibiting the contractility of gastrointestinal smooth muscle leading to gallbladder hypomotility;

• Estrogen

• Progesterone

• Testosterone

• Prolactin

At what age of gestation does supine position should be avoided to prevent aortocaval compression?

• 18 weeks

• 19 weeks

• 20 weeks

•  21 weeks

Cesarean delivery is associated with a blood loss of about

• 250 mL 

• 500 mL

• 750 mL

• 1000 mL