Cardio Flashcards
Cushing triad
Hypertension
Bradycardia
Respiratory depression
The most common site of coronary artery occlusion
Left anterior descending artery
What organ has the Largest share if systemic cardiac output?
Liver
What organ has the highest blood flow per gram of tissue?
Kidney
Factors determining autoregulation of the heart (3)
O2
Adenosine
NO
Factors determining autoregulation of the brain (1)
CO2 (pH)
Factors determining autoregulation of the kidneys (2)
Myogenic and tubuloglomerular feedback
Factors determining autoregulation of the skeletal muscle
Lactate
Adenosine
K
What is the most common cause of early cyanosis in infants?
Tetralogy of Fallot
Right-to-Left shunts
Early cyanosis
“Blue babies”
Tetralogy of Fallot Transposition of great vessels Truncus arteriosus Tricuspid atresia Total anomalous pulmonary venous return (TAPVR)
Most common congenital cardiac anomaly
VSD
Left-to-Right shunts
Late cyanosis
“Blue kids”
VSD
ASD
PDA
VSD>ASD>PDA
This defect is caused by anterosuperior displacement of the infundibular septum
Tetralogy of Fallot
This defect is caused by failure of the aorticopulmonary septum to spiral
D-Transposition of Great Vessels
Type of atherosclerosis involving calcification of the MEDIA of arteries, especially RADIAL or ULNAR.
“Pipestem arteries”
Does not cause obstruction, does not involve intima.
Monckeberg
Disruption of vasa vasorum of the aorta with consequent dilation of the aorta and valve ring causing “Tree bark” appearance of aorta. Calcification of aortic root and ascending aortic arch
Tertiary syphilis
A decrease in amplitude of systolic blood pressure by 10mmHg during inspiration. Seen in severe cardiac tamponade, asthma, obstructive sleep apnea, pericarditis, and croup
Pulsus paradoxus
Most common primary cardiac tumor in adults
Myxomas