NCC EFM PRACTICE EXAM WITH COMPLETE QUESTIONS AND CORRECT VERIFIED ANSWERS (DETAILED ANSWERS) ALREADY GRADED A+ 100% GUARANTEED TO PASS CONCEPTS!!!. Stimulating the vagus nerve typically produces: a. A decrease in the heart rate b. An increase in the heart rate c. An increase in stroke volume d. No change - ANSWER -a. A decrease in the heart rate Which of the following factors can have a negative effect on uterine blood flow? a. Hypertension b. Epidural c. Hemorrhage d. Diabetes e. All of the above - ANSWER -e. All of the above The vagus nerve begins maturation 26 to 28 weeks. Its dominance results in what effect to the FHR baseline? a. Increases baseline b. Decreases baseline - ANSWER -b. Decreases baseline T/F: The most common artifact with the ultrasound transducer system for fetal heart rate is increased variability. - ANSWER -True T/F: All fetal monitors contain a logic system designed to reject artifact. - ANSWER -True T/F: Fetal arrhythmias can be seen on both internal and external monitor tracings. - ANSWER -True T/F: Variability and periodic changes can be detected with both internal and external monitoring. - ANSWER -True T/F: Variable decelerations are a vagal response. - ANSWER -True T/F: Variable decelerations are the most frequently seen fetal heart rate deceleration pattern in labor. - ANSWER -True Etiology of a baseline FHR of 165bpm occurring for the last hour can be: 1. Maternal supine hypotension 2. Maternal fever 3. Maternal dehydration 4. Unknown a. 1 and 2 b. 1, 2 and 3 c. 2, 3 and 4 - ANSWER -c. 2, 3 and 4 The most prevalent risk factor associated with fetal death before the onset of labor is: a. Low socioeconomic status b. Fetal malpresentation c. Uteroplacental insufficiency d. Uterine anomalies - ANSWER -c. Uteroplacental insufficiency Which of the following conditions is not an indication for antepartum fetal surveillance? a. Gestational hypertension b. Diabetes in pregnancy c. Fetus in breech presentation d. Decreased fetal movement - ANSWER -c. Fetus in breech presentation Which of the following does not affect the degree of fetal activity? a. Vibroacoustic stimulation b. Smoking c. Fetal position d. Gestational age - ANSWER -a. Vibroacoustic stimulation T/F: Umbilical cord influences that can alter blood flow include true knots, hematomas, and number of umbilical vessels. - ANSWER -True T/F: Low amplitude contractions are not an early sign of preterm labor. - ANSWER -False T/F: Corticosteroid administration may cause an increase in FHR accelerations. - ANSWER -False T/F: Corticosteroid administration may cause an increase in FHR. - ANSWER -
True T/F: Contractions cause an increase in uterine venous pressure and a decrease in uterine artery perfusion. - ANSWER -True As a result of the intrinsic fetal response to oxygen deprivation, increased catecholamine levels cause the peripheral blood flow to decrease while the blood flow to vital organs increases. These flow changes along with increased catecholamine secretions h ave what effect on fetal blood pressure and fetal heart rate? A. Increase BP and increase HR B. Increase BP and decrease HR C. Decrease BP and increase HR D. Decrease BP and decrease HR - ANSWER -B. Increase BP and decrease HR During a term antepartum NST (non -stress test), you notice several variable decelerations that decrease at least 15 bpm and last at least 15 sec long. Which of the following is the least likely explanation? A. True knot B. Gestational diabetes C. Umbilical cord entanglement D. Oligohydramnios - ANSWER -B. Gestational diabetes All of the following are likely causes of prolonged decelerations except: A. Uterine tachysystole B. Prolapsed cord C. Maternal hypotension D. Maternal fever - ANSWER -D. Maternal fever
True T/F: Contractions cause an increase in uterine venous pressure and a decrease in uterine artery perfusion. - ANSWER -True As a result of the intrinsic fetal response to oxygen deprivation, increased catecholamine levels cause the peripheral blood flow to decrease while the blood flow to vital organs increases. These flow changes along with increased catecholamine secretions h ave what effect on fetal blood pressure and fetal heart rate? A. Increase BP and increase HR B. Increase BP and decrease HR C. Decrease BP and increase HR D. Decrease BP and decrease HR - ANSWER -B. Increase BP and decrease HR During a term antepartum NST (non -stress test), you notice several variable decelerations that decrease at least 15 bpm and last at least 15 sec long. Which of the following is the least likely explanation? A. True knot B. Gestational diabetes C. Umbilical cord entanglement D. Oligohydramnios - ANSWER -B. Gestational diabetes All of the following are likely causes of prolonged decelerations except: A. Uterine tachysystole B. Prolapsed cord C. Maternal hypotension D. Maternal fever - ANSWER -D. Maternal fever
