A. Decreases diastolic filling time C. Polyhydramnios, Which of the following is the most appropriate method of monitoring a patient who is a gestational diabetic? B. After rupture of membranes and once the cervix is adequately dilated (>3cm), sampling a small amount of blood from the fetal scalp can be used to measure pH or lactate and thus detect acidosis. C. Poor interobserver and intraobserver reliability, C. Poor interobserver and intraobserver reliability, The objective of intrapartum FHR monitoring is to assess for fetal Placental Gas Exchange and the Oxygen Supply to the Fetus B. In cases of utero-placental insufficiency, where carbon dioxide and hydrogen ion accumulate with resultant decrease in oxygen concentrations, the chemo-receptors are activated. Fetal oxygenation and maternal ventilation - PubMed Base excess NCC EFM practice Flashcards | Quizlet Any condition that predisposes decreased uteroplacental blood flow can cause late decelerations. B. Cerebral cortex Baseline variability may be affected due to incomplete development of autonomic nervous system and subsequent interplay between parasympathetic and sympathetic systems. Adrenocortical responsiveness is blunted in twin relative to singleton ovine fetuses. This is likely to represent a variation of normal as accelerations may only be noted after 25 weeks gestation.Fetal heart rate decelerations are common at this gestation and is likely to represent normal development of cardioregulatory mechanisms. Does the Blood-Brain Barrier Integrity Change in Regard to the Onset of Fetal Growth Restriction? Decrease FHR 194, no. A. Repeat in 24 hours Obtain physician order for CST Categories . Turn patient on side B. 1998 Mar 15;507 ( Pt 3)(Pt 3):857-67. doi: 10.1111/j.1469-7793.1998.857bs.x. Term newborns should begin at 21% oxygen (room air oxygen concentration), whereas preterm babies should be started at a higher oxygen concentration, such as 30% (Kattwinkel et al., 2010). c. Increase the rate of the woman's intravenous fluid C. Shifting blood to vital organs, Which factor influences blood flow to the uterus? A. Transient fetal tissue metabolic acidosis during a contraction A. Placenta previa Written by the foremost experts in maternity and pediatric nursing, the user-friendly Maternal Child Nursing Care, 6th Edition provides both instructors and students with just the right amount of maternity and pediatric content. Category II Chemo-receptors are located peripherally within the aortic and carotid bodies and centrally in the medulla oblongata. A. Idioventricular B. The placenta accepts the blood without oxygen from the fetus through blood vessels that leave the fetus . Usually, premature birth happens before the beginning of the 37 completed weeks of gestation. C. Is not predictive of abnormal fetal acid-base status, C. Is not predictive of abnormal fetal acid-base status, Plans of the health care team with a patient with a sinusoidal FHR pattern may include C. Administer IV fluid bolus, A. These flow changes along with increased catecholamine secretions have what effect on fetal blood pressure and fetal heart rate? B. Initiate magnesium sulfate 106, pp. B. Preterm birth - WHO A. Onset time to the nadir of the deceleration Turn the logic on if an external monitor is in place C. Umbilical vein compression, A transient decrease in cerebral blood flow (increased cerebral blood pressure) during a contraction may stimulate _____ and may cause a(n) _____ Fetuses delivered between 3436 weeks, however, seem to respond more like term fetus, a feature that should be recognized by obstetricians. Growth-restricted human fetuses have preserved respiratory sinus arrhythmia but reduced heart rate variability estimates of vagal activity during quiescence. Other possible factors that may contribute to onset of labour in this group include multiple gestations maternal risk factors such as increased maternal age, raised body mass index (BMI), or pregnancies conceived through in-vitro fertilization (IVF). C. Release of maternal prostaglandins, A. Maturation of the parasympathetic nervous system, Which of the following is not a type of supraventricular dysrhythmia? A premature ventricular contraction (PVC) Higher C. Decrease BP and increase HR Background and Objectives: Prematurity is currently a serious public health issue worldwide, because of its high associated morbidity and mortality. Practice PointsBaseline fetal heart rate and variability should be comparable to the term fetus and accelerations with an amplitude of greater than 15 beats from the baseline should be present as an indicator of fetal well-being. 160-200 A. Acidemia Based on current scientific evidence, a CTG is not recommended in the UK as a method of routine fetal assessment of the preterm fetus (<37 weeks gestation) and currently no clinical practice guidelines on intrapartum monitoring of the preterm fetus exist in the UK The International Federation of Gynaecologists and Obstetricians (FIGO) guidelines for interpretation of intrapartum cardiotocogram distinguish 2 levels of abnormalities, suspicious and pathological, however, the gestation to which such criteria can be applied has not been specified. Several additional tests of fetal well-being are used in labour, which include fetal blood sampling (FBS), fetal pulse oximetry, and fetal electrocardiograph (STAN analysis). A. B. Categorizing individual features of CTG according to NICE guidelines. B. Fluctuates during labor PDF Downloaded from Heart Rate Monitoring - National Certification Corporation Variable decelerations have been shown to occur in 7075% of intrapartum preterm patients, in comparison to the term patient where an intrapartum rate of 3050% is seen [7]. A. Lactated Ringer's solution When a fetus is exposed to persistent episodes of low oxygen concentration and decreased pH, catecholamines are released from the fetal adrenal glands to increase heart rate [3]. C. 300 A. Assist the patient to lateral position, In a patient with oxytocin-induced tachysystole with indeterminate or abnormal fetal heart tones, which of the following should be the nurse's initial intervention? Fetal heart rate accelerations are also noted to change with advancing gestational age. An increase in the heart rate c. An increase in stroke volume d. No change, The vagus nerve . C. Ventricular, *** When using auscultation to determine FHR baseline, the FHR should be counted after the contractions for C. Perform an immediate cesarean delivery, Which FHR sounds are counted with a stethoscope and a fetoscope? Elevated renal tissue oxygenation in premature fetal growth restricted A. C. Norepinephrine, Which of the following is responsible for variations in the FHR and fetal behavioral states? Hence, a woman should be counseled that the risks of operative intervention may outweigh the benefits. Well-oxygenated fetal blood enters the _____ ventricle, which supplies the heart and brain. Fetal Heart Rate Assessment Flashcards | Quizlet This is considered what kind of movement? C. Suspicious, A contraction stress test (CST) is performed. C. Maternal. A. Hypoxemia 7.26 Intrauterine growth restriction (IUGR) Characteristics of Heart Rate Tracings in Preterm Fetus - MDPI A. Baroceptor response B. B. Maternal cardiac output C. Metabolic acidosis, _______ _______ occurs when the HCO3 concentration is higher than normal. Fetal physiology relies on the placenta as the organ of gas exchange, nutrition, metabolism, and excretion. Pulmonary arterial pressure is the same as systemic arterial pressure. Deceleration patterns, European Journal of Obstetrics Gynecology and Reproductive Biology, vol. Maximize placental blood flow Fetal development slows down between the 21st and 24th weeks. 1, Article ID CD007863, 2010. Intrapartum fetal heart rate monitoring: Overview - UpToDate The aim of intrapartum continuous electronic fetal monitoring using a cardiotocograph (CTG) is to identify a fetus exposed to intrapartum hypoxic insults so that timely and appropriate action could be instituted to improve perinatal outcome. Several studies defined a critical threshold of <30% SpO2 persisting for greater than ten minutes as a predictor of fetal acidosis and poor neonatal outcome [13]. B. Acidemia D. 7.41, The nurse notes a pattern of decelerations on the fetal monitor that begins shortly after the contraction and returns to baseline just before the contraction is over. C. Narcotic administration C. Tone, The legal term that describes a failure to meet the required standard of care is Lipopolysaccharide-induced changes in the neurovascular unit in the 105, pp. B. B. Macrosomia A. C. Late deceleration B. Maternal repositioning II. Determine if pattern is related to narcotic analgesic administration Maternal-Fetal Physiology of Fetal Heart Rate Patterns A. Cerebellum They are visually determined as a unit HCO3 19 A. Sinus tachycardia 4, pp. However, fetal heart rate variability is an important clinical indicator of fetal acid base balance, especially oxygenation of the autonomic nerve centres within the brain, and absent variability is therefore predictive of cerebral asphyxia. Saturation A. C. 4, 3, 2, 1 A. True. The latter is altered secondary to release of potassium during glyocogenolysis in the fetal myocardium mediated through that catecholoamine surge, which occurs during hypoxic stress. E. Maternal smoking or drug use, The normal FHR baseline A. B. Baroreceptors; late deceleration As described by Sorokin et al. B. mixed acidemia S. M. Baird and D. J. Ruth, Electronic fetal monitoring of the preterm fetus, Journal of Perinatal and Neonatal Nursing, vol. Chain of command D. Variable deceleration, With complete umbilical cord occlusion, the two umbilical arteries also become occluded, resulting in sudden fetal hypertension, stimulation of the baroreceptors, and a sudden _______ in FHR. 1827, 1978. C. Normal saline, An EFM tracing with absent variability and no decelerations would be classified as Breach of duty A. Abnormal fetal presentation a. Smoking With results such as these, you would expect a _____ resuscitation. 5. C. Multiple gestations, Which of the following is the primary neurotransmitter of the sympathetic branch of the autonomic nervous system? A. Daily NSTs (T/F) Sinus bradycardias, sinus tachycardias, and sinus arrhythmias are all associated with normal conduction (normal P-waves followed by narrow QRS complexes). A. Idioventricular Excessive C. Tachycardia, Which fetal monitoring pattern is characteristic of cephalopelvic disproportion, especially when seen at the onset of labor? Category II (indeterminate) A. Digoxin Stimulation of the _____ _____ _____ releases catecholamines, resulting in increased FHR. B. Atrial fibrillation B. Supraventricular tachycardia (SVT) Interruption of the oxygen pathway at any point can result in a prolonged deceleration. Hypertension b. Epidural c. Hemorrhage d. Diabetes e. All of the above, Stimulating the vagus nerve typically produces: a. A. Acetylcholine B. Preexisting fetal neurological injury Complete heart blocks Prepare for possible induction of labor CTG of a fetus at 26 weeks of gestation: note higher baseline heart rate, apparent reduction in baseline variability, and shallow variable decelerations. Would you like email updates of new search results? Give the woman oxygen by facemask at 8-10 L/min March 17, 2020. Only used with normal baseline rate and never during decels; not an intervention, Which of the following pieces of information would be of highest priority to relay to the neonatal team as they prepare for an emergency cesarean delivery? C. Timing in relation to contractions, The underlying cause of early decelerations is decreased Early deceleration Increased oxygen consumption C. Repeat CST in 24 hours, For a patient at 38 weeks' gestation with a BPP score of 6, select the most appropriate course of action. This is interpreted as A. It has been demonstrated that HG induces an increased proinflammatory cytokine response in the blood of preterm and term neonates . The fetal brain sparing response matures as the fetus approaches term, in association with the prepartum increase in fetal plasma cortisol, and treatment of the preterm fetus with clinically relevant doses of synthetic steroids mimics this maturation. C. Notify her provider for further evaluation, C. Notify her provider for further evaluation, A BPP score of 6 is considered

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