Intermediate Fetal Monitoring Questions And Answers, Exams of Medicine

Download Intermediate Fetal Monitoring Questions And Answers and more Exams Medicine in PDF only on Docsity! Intermediate Fetal Monitoring Questions And Answers Baseline Rate - correct answer -approximate mean FHR rounded to increments of 5bp during a 10 min segment - duration must be at least 2 min. or the baseline for that period is indeterminate Bradycardia - correct answer baseline rate less than 110 bpm Tachycardia - correct answer baseline of greater than 160 bpm Baseline variability - correct answer fluctuations in baseline FHR that are irregular in amplitude and frequency Absent variability - correct answer amplitude range undetectable Minimal variability - correct answer amplitude range > undetectable but <5/min Moderate variability - correct answer amplitude ranges 6- 25 bpm Intermediate Fetal Monitoring Questions And Answers Marked variability - correct answer amplitude range greater than 25 bpm Acceleration - correct answer visually apparent abrupt (<30 sec to peak) increase in FHR above baseline for less than 2 minutes -15bpmx15sec for 32 weeks and up -10bpmx10sec for less than 32 weeks Prolonged Acceleration - correct answer acceleration lasting longer than 2 minutes but less than 10 minutes. Early Deceleration - correct answer A visually apparent usually symmetrical gradual (more than 30 sec) decrease in FHR and return to baseline associated with a contraction -nadir occurs at the same time as the peak of the contraction Late Deceleration - correct answer visually apparent, usually symmetrical gradual decrease in FHR and return to baseline associate with a contraction -delayed in timing with the nadir occurring after the peak of the contraction Intermediate Fetal Monitoring Questions And Answers -maternal utero-placental circulation -fetal-placental circulation -placental transfer -uterine blood flow -umbilical cord -amniotic fluid How do most things move across the placenta - correct answer by simple diffusion AFI and the Placenta - correct answer amniotic fluid volume is an indirect indicator of placental function Intrinsic Influences on FHR - correct answer fetal homeostatic compensatory mechanisms -fetal circulation -ANS responses -baroreceptors -chemoreceptors -hormonal responses: redistribute blood flow Physiologic Stress of Contractions - correct answer - decrease in utero-placental blood flow Intermediate Fetal Monitoring Questions And Answers -stasis in intervillous spaces fetus relies on reserves Systematic Assessment of Monitor Tracing - correct answer -baseline -variability -periodic/episodic changes -uterine activity: frequency, duration, intensity, resting tone Periodic - correct answer associated with contractions Episodic - correct answer not associated with contractions What do accelerations indicate? - correct answer normal fetal acid-base status -well oxygenated What are variable decels a response to? - correct answer baroreceptors - vagal nerve is stimulated What are late decels a response to? - correct answer chemoreceptors Intermediate Fetal Monitoring Questions And Answers Tachysystole - correct answer More than five uterine contractions in 10 minutes, averaged over a 30-minute window Adequate MVUs - correct answer 200-250 Assessment of Fetal Acid-base Status - correct answer - indirect: scalp stim, vibroacoustic stim -direct: umbilical cord sampling Respiratory Acidosis - correct answer -increased CO2 levels (>60) -occurs when fetal CO2 cant be easily diffused -can develop rapidly -can be corrected rapidly Metabolic Acidosis - correct answer -increased lactic acid levels (BD >12, BE <-12) -result from anaerobic metabolism -takes longer to develop -takes longer to correct