CARDIO MODULE Flashcards
(200 cards)
CARDIO
Which wave in the venous pulse curve rises in pressure caused by atrial contraction? A. C wave B. A wave C. P wave D. C wave
B. A wave
CARDIO
Refers to the force that stretches relaxed fibers A. Preload B. Afterload C. Contractility D. Compliance
A. Preload
CARDIO
Maintains cell to cell adhesion between cardiac muscles A. Intercalated disk B. Gap junction C. Desmosome D. Macula densa
A. Intercalated disk
CARDIO
Heart sound that is always abnormal A. First B. Second C. Third heart sound D. Fourth heart sound
D. Fourth heart sound
CARDIO
All are factors that affect cardiac function except? A. Preload B. Compliance C. Overload D. Afterload
C. Overload
CARDIO
ST segment depression indicates what condition A. Myocardial infarction B. Myocardial athresia C. Ventricular tachycardia D. Myocardial ischemia
D. Myocardial ischemia
CARDIO
What occurs during the second heart sound? A. Closure of SL valves B. Closing of the AV valves C. Vibration of the blood and chordae tendinae D. Opening of the SL valves
A. Closure of SL valves
CARDIO
Cardiac muscles undergo to the following except A. Shortening B. Tetany C. Thickening D. Torsion
B. Tetany
CARDIO
The T wave represents A. Atrial depolarization B. Atrial repolarization C. Ventricular depolarization D. Ventricular repolarization
D. Ventricular repolarization
CARDIO
The duration of this interval varies with the heart A. PR B. QRS C. QT D. ST
C. QT
CARDIO
Main cardiac pacemaker of the heart? A.AV node B.AV bundle C. SA node D. Purkinje fibers
C. SA node
CARDIO
All of the factors are increasing the sinoatrial node firing rate except? A. Hyperkalemia B. Hyperthyroidism C. Sympathetic simulation D.Catecholamines
A. Hyperkalemia
CARDIO
Example of sodium channel blockers A. Verpamil B. Diltiazem C. Tetracycline D. Quinidine
D. Quinidine
CARDIO
Type of cardiac potentials that are found in atrial myocytes A. NAP B. PAP C. Both D. Neither
A. NAP
CARDIO
What happens to Em when external K+ is increased? A. Threshold will be difficult to reach B. No action potentials can be produced C. Cells become more excitable D. Cells become more weak
C. Cells become more excitable
CARDIO
What type of cardiac cell that does not initiate its own action potentials? A. Automatic cells B. Working cells C. Negative cells D. Squamous cells
B. Working cells
CARDIO
All are types of lead except? A. Standard limb lead B. Augmented lead C. Striated lead D. Precordial lead
C. Striated lead
CARDIO
What does diffuse U waves signify in all leads? A. Hyperkalemia B. Hypocalcemia C.Hypokalemia D. Hypercalcemia
C.Hypokalemia
CARDIO
Prolonged PR interval is indicative of conduction delay at the A. AV node B.AV bundle C. SA node D. Purkinje fibers
A. AV node
CARDIO
Phase 2 of the ventricular action potential is represented in the ECG as: A. P wave B. PR segment C. QRS complex D. ST segment
D. ST segment
CARDIO
Occurs during the distal third of diastole A. Isovolumic contraction B. Atrial contraction C. Isovolumic relaxation D. Rapid ventricular ejection
B. Atrial contraction
CARDIO
Increase in ventricular pressure, decrease in ventricular volume A. Reduced ventricular ejection B. Isovolumic relaxation C. Rapid ventricular filling D. Rapid ventricular ejection
D. Rapid ventricular ejection
CARDIO
Decrease in ventricular pressure, decrease in ventricular volume A. Rapid ventricular ejection B. Rapid ventricular filling C. Reduced ventricular ejection D. Reduced ventricular filling
C. Reduced ventricular ejection
CARDIO
Rapid ventricular filling occurs in A. Final 1/3 of systole B. First 1/3 of diastole C. First 1/3 of systole D. Middle 1/3 of diastole
C. First 1/3 of systole