Answers

situs, viability, 4CH, ventricular/atrial septae, LVOT, RVOT, 3VV, aortic arch, ductal arch
120-180 BPM; 100-120 at 5.5-6 wks; 170 by 9-10 wks; 130 by term
abnormal atrial and ventricular contractions originating from locations other than the sinus node
PAC's ass.c redundancy of foramen ovale membrane, caffeine, smoking, multiple pregnancies
heart rate greater than 180 BPM supraventricular tachycardias (SVTs) more common than ventricular tachycardia
a) paroxysmal supraventricular tach-: atrial rate 180-300, conduction rate 1:1
b) atrial flutter: atrial rate 300-400 conduction rate 2:1-4:1...ass.c heart block
c) atrial fibrillation: atrial rate >400, irregular vent rate 120-160;
ventricular tach. is rapid heart rate associated with >3 consecutive premature ventricular systoles
structural cardiac lesions 10%; can lead to hydrops and death;
prolonged FHR
failure of transmission of impulses from atrium to ventricles; immature/absent conduction system
maternal collagen vascular disease (systemic lupus erythematosus
complete disassociation between atrial and vent. rates (odd ratios). ass.c non-immune hydrops
structural cardiac anomalies, prognosis is poor
stomach and heart on Lt side ?
normal position of heart on left side of chest
apex is directed rightward, heart is primarily in right chest
heart in normal axis, displaced to the right by external process (e.g. left-sided chest mass)
heart is central with apex pointing anteriorly
dextroposition

	Created by caitlineschnurr about 10 years ago

2 OB II Slide Set on OB week 2, created by caitlineschnurr on 10/07/2015.