ORPEDIC NURSE CERTIFICATION: AN A+ QUESTIONS AND
ANSWERS PLAYBOOK
Midaxillary
An imaginary line through the axillary region that separates the front and back of the human body
Midclavicular
An imaginary line through the middle of the clavicle that extends vertically
Myocardial infarction
Ischemia and death of heart muscle tissue
Myocardium
Middle muscular layer of the heart
Pacemaker
Medical device that provides artificial stimulation to the heart muscle to trigger contraction
Percardium
A serous sac that encases the heart, is formed from two layers, and is usually filled withe a small amount
of fluid
PQRST waves
Standard wave forms found on the EKG tracing. Each wave Corresponds to a specific event within the
heart's electrical cycle.
Precordial leads
Six EKG leads placed on the anterior chest to record electrical activity of the heart, mainly the electrical
impulses originating in the ventricles or the heart's anterior wall
Pulmonary artery
The only artery in the body that carries de-oxygenated blood. The pulmonary arteries carry blood to the
lungs.
Pulmonic valve (pulmonary semilunar)
The pulmonary semilunar prevents blood in the lungs from returning to the right ventricle during
diastole
Pulmonary vein
The only vein in the body that carries oxygenated blood. The pulmonary veins carry blood from the lungs
to the heart.
ANSWERS PLAYBOOK
Midaxillary
An imaginary line through the axillary region that separates the front and back of the human body
Midclavicular
An imaginary line through the middle of the clavicle that extends vertically
Myocardial infarction
Ischemia and death of heart muscle tissue
Myocardium
Middle muscular layer of the heart
Pacemaker
Medical device that provides artificial stimulation to the heart muscle to trigger contraction
Percardium
A serous sac that encases the heart, is formed from two layers, and is usually filled withe a small amount
of fluid
PQRST waves
Standard wave forms found on the EKG tracing. Each wave Corresponds to a specific event within the
heart's electrical cycle.
Precordial leads
Six EKG leads placed on the anterior chest to record electrical activity of the heart, mainly the electrical
impulses originating in the ventricles or the heart's anterior wall
Pulmonary artery
The only artery in the body that carries de-oxygenated blood. The pulmonary arteries carry blood to the
lungs.
Pulmonic valve (pulmonary semilunar)
The pulmonary semilunar prevents blood in the lungs from returning to the right ventricle during
diastole
Pulmonary vein
The only vein in the body that carries oxygenated blood. The pulmonary veins carry blood from the lungs
to the heart.
