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Pediatric Echo Quiz1

Possible questions for 1st quiz

Q:A:
Umbilical vein becomes: ligamentum teres
Ductus venosus becomes: ligamentum venosum
umbilical arteries become: medial umbilical ligaments
ductus arteriosus becomes: ligamentum arteriosum
Closure of the ductus arteriosus results in ______ pressure of the ______ atrium: increased, left atrium
Complete fusion of the foramen ovale is usually complete by: 1 year of age
What causes ductus arteriosus to close at birth? vasoactive peptide
oxygenated blood travels from the placenta to the fetus via the: umbilical vein
Normal Ventricular Arterial Connection is called: Concordant connection
Abnormal Ventricular Arterial Connection is called: Discordant Connection
Stage I begins on day: 22
Stage II begins around day: 23
atrioventriculobulbo loop is complete by day: 24
Stage II is complete on day: 28
first contraction of the heart on day: 28
Septation occurs during stage ___ between days ___ and ____ III, 27, 37
Septum Primum develops on approx. day___ 30
Ostium primum is obliterated due to fusion of septum primum with the endocardial cushions on approx. day___ 33
Ostium Secundum forms within the septum primum on approx. day___ 33
Septum Secundum forms on approx. day___ 37
IVS is formed by the end of the: 7th week
Cushions of the primitive heart grow and twist around each other forming the Aorticopulmonary Septum by when? Approximately 8 weeks
____ aortic arches develop from the __________ 6, truncus arteriosus
3rd aortic arch becomes: internal carotid
4th aortic arch becomes: aortic arch
6th aortic arch becomes: pulmonary arteries and ductus arteriosus
internal carotid is formed from the ____ aortic arch 3rd
aortic arch is formed from the ____ aortic arch 4th
ductus arteriosus is formed from the ____ aortic arch 6th
pulmonary arteries are formed from the ____ aortic arch 6th
Aortic arches __, __, and__ disappear: 1,2,and 5
Atrioventricular Valves form from: lateral endocardial cushions
Semimlunar Valves form from: tubercles on the main truncus swelling (develop between 5 and 7 weeks
Fetal Alternative Blood Flow Patterns - 3 alternative routes: Ductus Venosus (bypasses liver), Foramen Ovale (bypasses PA), and Ductus Arteriosus (bypasses lungs)
Levocardia means: Heart has normal placement in the chest; middle mediastinum with apex to the left
Dextrocardia means: Abnormal heart location – right chest, apex to the right
Dextroposition means: Abnormal heart location – right chest, apex to the left
Mesocardia means: Abnormal heart location – heart is midline, apex midline
Three different types of cardiac situs: Situs Solitus, Situs Inversus, & Situs Ambiguous
Situs Ambiguous – 2 different syndromes: Asplenia syndrome, Polysplenia syndrome
Asplenia syndrome =______ atrial isomersion right -- both atria have right atrial morphologic features
Polysplenia Syndrome =______ atrial isomersion left -- both atria have left atrial morphologic features
Asplenia syndrome associated with CHD in ___% of cases 99-100%
Ventricular Looping: Dextro- = Normal – right ventricle on the right
Ventricular Looping: Levo- = Abnormal – right ventricle on the left
Great Vessel Relationship: Dextro- = Normal – AoV to the right of pulmonic valve
Great Vessel Relationship: Levo- = Abnormal – AoV to the left of pulmonic valve
Atrioventricular Connections: Concordant connection= Normal -- RA connects to RV across TV
Atrioventricular Connections: Discordant connection Abnormal -- RA connects to LV across MV
Blood travels through the _____ _____ upwards to the liver umbilical vein
Most of the blood bypasses the liver via the ________ ________ ductus venosus
The majority of fetal blood that enters the pulmonary artery passes directly through the ________ ________ to the descending aorta ductus arteriosus
blood flows out of the fetus by way of the two _____ _____ and returns to the placenta. The returning blood has an O2 saturation of about____% umbilical arteries, 58%
Fetal Cardiac Output -- RV accounts for ____ of total ventricular output 2/3
Fetal Cardiac Output -- LV accounts for ____ of total ventricular output 1/3
___% of total ventricular output flows through the pulmonary arteries 8%
___% combined ventricular output enters the descending aorta via ductus arteriosus 57%
___% of cardiac output from left ventricle perfuses the brain, head, and upper body 21%
To be able to estimate pulmonary artery pressure, the patient must have one of the following: PDA, VSD, or TI
Created by: lefut on 2007-04-15



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