NCC Electronic Fetal Monitoring Certification |470 questions with correct answers, Exams of Nursing

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NCC Electronic Fetal Monitoring Certification |

470 questions with correct answers

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 How does the fetus compensate for decreased maternal circulating volume? a. Increases cardiac output by increasing stroke volume. b. Increases cardiac output by increasing it's heart rate. c. Increases cardiac output by increasing fetal movement. - Answer b. Increases cardiac output by increasing it's heart rate. 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 What initially causes a chemoreceptor response? a. Epidurals b. Supine maternal position c. Increased CO2 levels

d. Decreased O2 levels e. A & C f. A & B g. C & D - Answer g. C & D 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: Oxygen exchange in the placenta takes place in the intervillous space. - Answer True T/F: The parasympathetic nervous system is a cardioaccelerator. - Answer False T/F: Baroreceptors are stretch receptors which respond to increases or decreases in blood pressure. - Answer True T/F: There are two electronic fetal monitoring methods of obtaining the fetal heart rate: the ultrasound transducer and the fetal spiral electrode. - Answer True T/F: Variability can be determined with the fetoscope. - Answer False T/F: Because the ultrasound transducer and toco transducer are sealed units, they can be dipped in warm water to make cleaning easier. - Answer False

T/F: The heart rate from a well-applied fetal spiral electrode can only be fetal, not maternal. - Answer False T/F: The intrauterine catheter is used to pick up the fetal heart rate. - Answer False T/F: The internal spiral electrode may pick up the maternal heart rate if the baby has died. - 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 result of cord compression. - Answer True T/F: The presence of FHR accelerations in the intrapartum and antepartum periods is a sign of adequate fetal oxygenation. - Answer True T/F: Variable decelerations are a vagal response. - Answer True T/F: Late decelerations have a gradual decrease in FHR (onset to nadir 30 seconds) and are delayed in timing with the nadir of the deceleration occurring after the peak of the contraction. - Answer True

T/F: The fetal heart rate baseline can be determined during periods of marked variability. - Answer False T/F: Anything that affects maternal blood flow (cardiac output) can affect the blood flow through the placenta. - Answer True T/F: Variable decelerations are the most frequently seen fetal heart rate deceleration pattern in labor. - Answer True T/F: Minimal variability is always an indicator of hypoxia and a Cesarean section is indicated. - Answer False What is your first intervention in management of a patient experiencing variable decelerations? a. Immediate delivery b. Change maternal position c. No treatment indicated d. Oxygen e. Stop oxytocin infusion - Answer b. Change maternal position 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

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 To be considered reactive, a nonstress test must have: a. 4 fetal heart rate accelerations in a 20 minute window b. 2 fetal heart rate accelerations in a 10 minute window c. 4 fetal heart rate accelerations in a 40 minute window d. 2 fetal heart rate accelerations in a 20 minute window - Answer d. 2 fetal heart rate accelerations in a 20 minute window If a nonstress test is nonreactive after 40 minutes, the next step should be: a. Have the client go home and do fetal movement counts b. Do a biophysical profile or contraction stress test c. Repeat the nonstress test within a week d. Admit the client for delivery - Answer b. Do a biophysical profile or contraction stress test All of the following are components of a biophysical profile except: a. Contraction stress test b. Assessment of fetal breathing c. Amniotic fluid volume measurement

d. Fetal movement assessment - Answer a. Contraction stress test A modified biophysical profile includes a nonstress test and: a. Contraction stress test b. Ultrasound assessment of fetal movement c. Ultrasound assessment of amniotic fluid volume d. Fetal movement counts - Answer c. Ultrasound assessment of amniotic fluid volume For a contraction stress test to be interpretable, you must have a minimum of: a. 5 contractions in a 10-minute window b. 3 contractions in a 10-minute window c. 4 contractions in a 10-minute window d. 2 contractions in a 10-minute window - Answer b. 3 contractions in a 10 minute window A negative contraction stress test is one in which: a. No contractions are seen b. There are late decelerations with > 50% of the contractions seen c. There are no fetal heart rate late decelerations with the contractions d. There is one fetal heart rate deceleration seen - Answer c. There are no fetal heart rate late decelerations with the contractions According to AWHONN, the normal baseline Fetal Heart Rate (FHR) is A. 90-150 bpm B. 100-170 bpm

A. 10

B. 6

C. 8 - Answer B. 6 When using a fetal scalp electrode (FSE), you notice an abnormally low FHR on the monitor. You should first A. Compare maternal pulse simultaneously with FHR B. Remove FSE C. Call the doctor immediately D. Turn off the monitor - Answer A. Compare maternal pulse simultaneously with FHR 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: Preterm contractions are usually painful. - 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 have 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 All of the following might indicate a pseudosinusoidal pattern as opposed to a sinusoidal pattern, except: A. Recent administration of narcotics to mother B. Accelerations in FHR C. Moderate variability D. Frequency of oscillations of two to five cycles/min - Answer D. Frequency of oscillations of two to five cycles/min All of the following are appropriate interventions for fetal tachycardia except: A. Increase maternal IV fluid rate B. Assess maternal vital signs C. Perform SVE D. Administer oxygen - Answer C. Perform SVE 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?

D. Ephedrine administration - Answer D. Ephedrine administration When an IUPC has been placed, Montevideo units must be ___ or greater for adequate cervical change to occur. A. 100 B. 200 C. 300 D. 400 - Answer B. 200 The ________ increases the heart rate and strengthens myocardial contractions through the release of epinephrine and nonepinephrine. A. Sympathetic nervous system B. Parasympathetic nervous system - Answer A. Sympathetic nervous system The ________, through stimulation of the vagus nerve, reduces FHR and maintains variability. A. Sympathetic nervous system B. Parasympathetic nervous system - Answer B. Parasympathetic nervous system What would be a suspected pH in a fetus whose FHTs included recurrent late decelerations during labor? A. 7. B. 7. C. 7. D. 7.41 - Answer A. 7. What is the most common cause of sinusoidal patterns?

A. Prolapsed cord B. Rh incompatibility C. Recurrent late decelerations D. Oligohydramnios - Answer B. Rh incompatibility Before ___ weeks of gestation, an increase in FHR that peaks at least 10 bpm above the baseline and lasts at least 10 seconds is considered an acceleration. A. 28 B. 30 C. 32 D. 36 - Answer C. 32 The expected response of the fetal heart rate to active fetal movement of a 31-week gestational age fetus is: a. Suppression of normal short term variability for 15 seconds b. Acceleration of at least 15 beats per minute for 15 seconds c. Acceleration followed by a 15-second deceleration of the heart rate d. Acceleration of at least 10 beats per minute for 10 seconds - Answer d. Acceleration of at least 10 beats per minute for 10 seconds The nurse notes a pattern of variable decelerations to 75 bpm on the fetal monitor. The initial nursing action is to: a. Reposition the woman b. Administer oxygen c. Increase the intravenous fluid infusion d. Stimulate the fetal scalp - Answer a. Reposition the woman

D. 7 or more contractions in 10 min - Answer B. 6 or more contractions in 10 min Which of the following interventions would best stimulate an acceleration in the FHR? A. Provide juice to patient B. Perform vaginal exam C. Turn patient on left side D. Vibroacoustic stimulation - Answer B. Perform vaginal exam Scalp stimulation Assessment of the _____ is an indirect measurement of fetal oxygenation. A. Fetal heart rate B. Fetal scalp sampling C. Uterine activity D. Direct Coombs - Answer A. Fetal heart rate T/F: Intrauterine pressure catheters (IUPCs) do not increase risk for infection when placed on patients with intact membranes. - Answer False Membranes must be ruptured for use; infection is a risk What are abnormal fetal heart rate tracings predictive of? A. Likelihood of spontaneous vaginal delivery B. Newborn condition at time of delivery C. Fetal acid-base abnormalities

D. Fetal intrauterine growth - Answer C. Fetal acid-base abnormalities Which of the following is not an intervention that should be implemented in a patient with uterine tachysystole? A. Administer terbutaline B. Increase IV fluid rate C. Decrease or discontinue IV oxytocin D. Prepare patient for cesarean section - Answer D. Prepare patient for cesarean section Which of the following is most effective in determining the strength of a patient's contractions? A. Patient report B. Tocodynanamometer tracing C. RN palpation D. Sterile vaginal exam during a contraction - Answer C. RN palpation The FHR is controlled by the A. Sympathetic nervous system B. Sinoatrial node C. Atrioventricular node D. Parasympathetic nervous system - Answer B. Sinoatrial node How do baseline heart rates differ in premature fetuses? A. They are often lower B. They are often higher

A deceleration from 145bpm down to 100bpm lasting 12 minutes may be defined as a A. Prolonged deceleration B. Variable deceleration C. Late deceleration D. Baseline change - Answer D. Baseline change Reduced respiratory gas exchange from persistent decelerations may cause a rise in fetal PCO2, which leads first to _______ _______, then _______ _______. A. Respiratory alkalosis; metabolic acidosis B. Respiratory acidosis; metabolic acidosis C. Respiratory alkalosis; metabolic alkalosis D. Respiratory acidosis; metabolic acidosis - Answer B. Respiratory acidosis; metabolic acidosis Decreased intervillious exchange of oxygenated blood resulting in fetal hypoxia is typically present in _______. A. Variable decelerations B. Late decelerations C. Early decelerations D. Accelerations - Answer B. Late decelerations Place the following interventions for a sinusoidal FHR in the correct order:

1. Prepare for cesarean delivery
2. Place patient in lateral position
3. Determine if pattern is related to narcotic analgesic administration

4. Provide oxygen via face mask A. 4, 2, 3, 1 B. 3, 1, 2, 4 C. 4, 3, 2, 1 D. 3, 2, 4, 1 - Answer D. 3, 2, 4, 1 The _____ is the source of all fetal oxygenation. A. Placenta B. Umbilical cord C. Mother D. Amniotic fluid - Answer C. Mother FHTs with recurrent variable decelerations, no accelerations, and minimal variability would be categorized as A. Category I B. Category II C. Category III - Answer B. Category II FHTs with absent variability and bradycardia would be categorized as A. Category I B. Category II C. Category III - Answer C. Category III FHTs with moderate variability, no accelerations, and early decelerations would be categorized as A. Category I