OMSA EXAM QUESTIONS AND ACCURATE ANSWERS 2024-2025
The heart is divided into how many chambers Answer 4 chambers: 2 atria and 2
ventricles
Insufficient amount of blood flowing through the coronary arteries can cause: - Answer
Angina
Beta one controls the - Answer Heart
Name the two systems that make up the autonomic nervous system: - Answer
Parasympathetic and Sympathetic
Stimulation of the Vagus nerve will __________ the heart rate - Answer decrease
Another name for the Parasympathetic nervous system is: -Answer Cholinergic
Another name for the Sympathetic nervous system is: -Answer Adrenergic
What sound does the heart make? What causes this sound? -Answer Lub-dub; The
sound is caused by the closing of the valves. The lub is the tricuspid and mitral valves
closing, the dub is the pulmonic and aortic valves closing.
Name the four valves in the heart - Answer 1) Aortic
2) Pulmonary
3) Bicuspid
4)Bicuspid (aka mitral valve)
,Where is the mitral valve located? - Answer between left atrium and left ventricle
Where is the tricuspid valve located? - Answer between right atrium and right ventricle
What is the purpose of valves in the heart? - Answer To prevent back-flow of blood
Trace the pathway of the conduction system through the heart. -Answer SA
(Sinoatrial/Sinus) node to the AV (atrioventricular) node, to the Bundle of His to the
Bundle Branches, to the Purkinjie Fibers.-SA AV Bundle of junkies.-
Trace the pathway of blood through the heart. -Answer -superior/inferior vena cava
-right atrium
-tricuspid valve
-right ventricle
-pulmonic valve
-pulmonary artery
-lung
-capillaries
-pulmonic vein
-left atrium
-mitral valve
-left ventricle
-aortic valve
-aorta
Which pt needs antibiotic premedication?
-A 28 yr old with a repaired atrial septal defect which was repaired at birth
-A 70 yr old with a prosthetic heart valve
, -A 67 yr old with a previous history of an MI
-A 20 yr old who reports a childhood heart murmur. Answer-A 70 year old with a
prosthetic heart valve
What is the difference between angina and an MI? - Answer Angina is chest pain due to
inadequate oxygenation while an MI means death of the actual heart muscle (necrosis).
Left sided heart failure often leads to: - Answer right sided heart failure
mnemonic for an MI - Answer MONA/FONA
MONA stands for: - Answer Morphine
Oxygen
Nitroglycerin
Aspirin
FONA stands for: - Answer Fentanyl
Oxygen
Nitroglycerin
Aspirin
What causes a heart murmur? -Answer turbulent blood flow across the valves of the
heart
Right sided heart failure symptoms -Answer -Ascites
-Pitting edema
Left sided heart failure symptoms -Answer -Orthopnea
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