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NCC EFM practice Questions and and answers
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NCC EFM practice_____ are abnormal FHR rhythms associated with disordered impulse formation,
conduction, or both.
A. Arrhythmias
B. Supraventricular tachycardias
C. Dysrhythmias - correct answer-C. Dysrhythmias
_____ are patterns of abnormal FHR associated with variability in R-to-R intervals, but with
normal P-waves preceding normal QRS complexes.
A. Arrhythmias
B. Complete heart blocks
C. Dysrhythmias - correct answer-A. Arrhythmias
_____ cord blood sampling is predictive of uteroplacental function.
A. Arterial
B. Venous
C. Maternal - correct answer-B. Venous
_______ _______ occurs when the HCO3 concentration is higher than normal.
A. Base deficit
B. Base excess
C. Metabolic acidosis - correct answer-B. Base excess
_______ _______ occurs when the HCO3 concentration is lower than normal.
A. Base deficit
B. Base excess
C. Metabolic acidosis - correct answer-A. Base deficit
_______ _______ occurs when there is high PCO2 with normal bicarbonate levels.
A. Metabolic acidosis
B. Respiratory acidosis
C. Metabolic alkalosis - correct answer-B. Respiratory acidosis
_______ _______ occurs when there is low bicarbonate (base excess) in the presence of
normal pressure of carbon dioxide (PCO2) values.
A. Metabolic acidosis
B. Respiratory acidosis
C. Metabolic alkalosis - correct answer-A. Metabolic acidosis
_______ denotes an increase in hydrogen ions in the fetal blood.
A. Acidosis
B. Acidemia
C. Hypercapnia - correct answer-B. Acidemia
,_______ is defined as the energy-consuming process of metabolism. - correct
answer-Anabolism
_______ is defined as the energy-releasing process of metabolism. - correct
answer-Catabolism
(T/F) An internal scalp electrode can solely diagnose a fetal dysrhythmia. - correct
answer-False
(T/F) An internal scalp electrode will detect the actual fetal ECG. - correct answer-True
(T/F) Metabolic acidosis is more easily reversible and potentially less detrimental to the fetus
when compared to respiratory acidosis. - correct answer-False
(T/F) Sinus bradycardias, sinus tachycardias, and sinus arrhythmias are all associated with
normal conduction (normal P-waves followed by narrow QRS complexes). - correct
answer-True
(T/F) There is a strong correlation between arterial cord blood gas results and Apgar scores.
- correct answer-False
(T/F) Vibroacoustic stimulation may be less effective for preterm fetuses or when
membranes have been ruptured. - correct answer-True
***
pH 6.86
pCO2 28
pO2 2.1
HCO3 4.0
B.D. 42
the umbilical arterial cord blood gas values reflect
A. metabolic acidemia
B. mixed acidemia
C. respiratory acidemia - correct answer-A. Metabolic acidemia
*** A preterm fetus with persistent supraventricular tachycardia that is not hydropic is best
treated with maternal administration of
A. Digoxin
B. Phenobarbital
C. Terbutaline - correct answer-A. Digoxin
*** As fetal hypoxia (asphyxia) worsens, the last component of the BPP to disappear is fetal
A. Breathing
B. Movement
C. Tone - correct answer-C. Tone
*** Baseline FHR variability is determined in what amount of time, excluding accelerations
and decelerations?
, A. 10 min
B. 20 min
C. 30 min - correct answer-A. 10 min
*** Regarding the reliability of EFM, there is
A. Good interobserver reliability
B. Good intraobserver reliability
C. Poor interobserver and intraobserver reliability - correct answer-C. Poor interobserver and
intraobserver reliability
*** The fetus responds to a significant drop of PO2 by
A. Increasing O2 consumption
B. Reducing lactic acid production
C. Shifting blood to vital organs - correct answer-C. Shifting blood to vital organs
*** When using auscultation to determine FHR baseline, the FHR should be counted after
the contractions for
A. 5-10 sec
B. 15-30 sec
C. 30-60 sec - correct answer-C. 30-60 sec
***A woman being monitored externally has a suspected fetal arrhythmia. The most
appropriate action is to
A. Insert a spiral electrode and turn off the logic
B. Turn the logic on if an external monitor is in place
C. Use a Doppler to listen to the ventricular rate - correct answer-A. Insert a spiral electrode
and turn off the logic
***A woman receives terbutaline for an external version. You may expect what on the fetal
heart tracing?
A. Decrease in variability
B. Increase in baseline
C. No change - correct answer-B. Increase in baseline
***Betamethasone given to the mother can transiently affect the FHR by
A. Decreasing variability
B. Increasing variability
C. Lowering the baseline - correct answer-A. Decreasing variability
A 36 week gestation patient is brought to triage by squad after an MVA on her back. She is
not bleeding and denies pain. She is not short of breath, but c/o dizziness and nausea since
they put her on the gurney. The most likely cause is
A. Abruptio placenta
B. Preterm labor
C. Supine hypotension - correct answer-C. Supine hypotension
A BPP score of 6 is considered
A. Abnormal
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