BME 256 FINAL EXAM QUESTIONS AND CORRECT ANSWERS 100% VERIFIED LATEST
UPDATE 2026-27!!
Where gas exchange occurs in lungs - (ANSWER)Alveoli
Thickness of capillary walls - (ANSWER).001 mm (1 um)
Diaphragm - (ANSWER)Act as bellow to move air in and out of lungs by creating vaccuum
Bucket handle motion - (ANSWER)Rotation of ribs that expands front to back dimensions of the chest
Pleural space - (ANSWER)Slippery space between lungs and rest of anatomy
Pneumothorax - (ANSWER)Air in the pleural space collapses the lung
Hemothorax - (ANSWER)Blood in the pleural space collapses the lung
Three bottle system - (ANSWER)Suction control, water seal, and drainage collection
Sleep apnea - (ANSWER)Absence of breathing during sleep, cause not well understood
C-PAP - (ANSWER)Continuous positive airway pressure
Sleep apnea treatment - (ANSWER)C-PAP, radio frequency somnoplasty
Radio frequency somnoplasty - (ANSWER)Removing tissue from airway to open it up more
Number of Americans with congestive heart failure - (ANSWER)5 million
New cases/year of congestive heart failure - (ANSWER)500,000
, BME 256 FINAL EXAM QUESTIONS AND CORRECT ANSWERS 100% VERIFIED LATEST
UPDATE 2026-27!!
Donor hearts available annually worldwide - (ANSWER)3,000
Mortality of advanced congestive heart failure - (ANSWER)50% in 5 years
Mortality of cardiogenic shock - (ANSWER)70 to 90%
Main issues with artificial hearts - (ANSWER)Clotting, following Starling's law
Intra-aortic balloon pump - (ANSWER)Creates vacuum in aorta when it deflates, decreases afterload,
used as emergency assist devices for cardiogenic shock
Diastolic pressure with IABP - (ANSWER)Raised above systolic pressure, increases coronary perfusion
Left ventricular assist device - (ANSWER)Draws blood from left atrium, pumps into femoral artery, taking
load off the heart
Clinical mission of LVADs - (ANSWER)Bridge to transplant, destination therapy (stuck with bulky device),
bridge to explant (heart can get stronger with help)
Issues with LVADs - (ANSWER)Moving plastic + blood, valves cause hemolysis, metal + blood causes clot
formation, lifetime anticoagulation causes trouble
Types of LVADs - (ANSWER)Pneumatic vs electric, pulsatile vs continuous flow
Benefits of LVADs - (ANSWER)Cardiac output increased, increased coronary perfusion, decreased left
ventricular size, wall tension, and oxygen consumption, increased right ventricular performance,
protection against asystole and V fib
UPDATE 2026-27!!
Where gas exchange occurs in lungs - (ANSWER)Alveoli
Thickness of capillary walls - (ANSWER).001 mm (1 um)
Diaphragm - (ANSWER)Act as bellow to move air in and out of lungs by creating vaccuum
Bucket handle motion - (ANSWER)Rotation of ribs that expands front to back dimensions of the chest
Pleural space - (ANSWER)Slippery space between lungs and rest of anatomy
Pneumothorax - (ANSWER)Air in the pleural space collapses the lung
Hemothorax - (ANSWER)Blood in the pleural space collapses the lung
Three bottle system - (ANSWER)Suction control, water seal, and drainage collection
Sleep apnea - (ANSWER)Absence of breathing during sleep, cause not well understood
C-PAP - (ANSWER)Continuous positive airway pressure
Sleep apnea treatment - (ANSWER)C-PAP, radio frequency somnoplasty
Radio frequency somnoplasty - (ANSWER)Removing tissue from airway to open it up more
Number of Americans with congestive heart failure - (ANSWER)5 million
New cases/year of congestive heart failure - (ANSWER)500,000
, BME 256 FINAL EXAM QUESTIONS AND CORRECT ANSWERS 100% VERIFIED LATEST
UPDATE 2026-27!!
Donor hearts available annually worldwide - (ANSWER)3,000
Mortality of advanced congestive heart failure - (ANSWER)50% in 5 years
Mortality of cardiogenic shock - (ANSWER)70 to 90%
Main issues with artificial hearts - (ANSWER)Clotting, following Starling's law
Intra-aortic balloon pump - (ANSWER)Creates vacuum in aorta when it deflates, decreases afterload,
used as emergency assist devices for cardiogenic shock
Diastolic pressure with IABP - (ANSWER)Raised above systolic pressure, increases coronary perfusion
Left ventricular assist device - (ANSWER)Draws blood from left atrium, pumps into femoral artery, taking
load off the heart
Clinical mission of LVADs - (ANSWER)Bridge to transplant, destination therapy (stuck with bulky device),
bridge to explant (heart can get stronger with help)
Issues with LVADs - (ANSWER)Moving plastic + blood, valves cause hemolysis, metal + blood causes clot
formation, lifetime anticoagulation causes trouble
Types of LVADs - (ANSWER)Pneumatic vs electric, pulsatile vs continuous flow
Benefits of LVADs - (ANSWER)Cardiac output increased, increased coronary perfusion, decreased left
ventricular size, wall tension, and oxygen consumption, increased right ventricular performance,
protection against asystole and V fib
