AND ANSWERS SURE A+
✔✔Internal jugular vein - ✔✔Drains much of blood from head and neck
✔✔Purkinje fiber system - ✔✔Causes muscles of heart to contract. Spreads impulse
rapidly along heart muscle.
✔✔Brachiocephalic artery - ✔✔Branches into right common carotid in neck and right
subclavian artery in arm.
✔✔Hematocrit - ✔✔% blood volume made up of red blood cells. Men: 42-52% women:
37-48%. Anything below 35% considered anemic.
✔✔Mental artery - ✔✔Supplies blood to chin.
✔✔Ischemia - ✔✔Reduced blood flow in coronary arteries. Lack of oxygen to heart cells
weakens, but does not kill them.
✔✔Maxillary artery - ✔✔Supplies blood to maxilla, teeth, sinuses, and portion of nose.
✔✔Medulla oblongata - ✔✔Coordinating region for impulses. The seat of many
autonomic centers.
✔✔Normal levels of hemoglobin - ✔✔Males: 13-18 mg/dL
Females: 14-16 mg/dL
✔✔Oropharynx - ✔✔Located between soft palate and epiglottis.
✔✔Facial nerve - ✔✔7th cranial nerve. Supplies motor fibers to muscles of facial
expression.
✔✔Trigeminal nerve - ✔✔5th cranial nerve. Supplies sensation to teeth and jaws.
✔✔Vagus nerve - ✔✔10th cranial nerve. Supplies fibers to many parts of body. (Ears,
tongue, pharynx, larynx, thoracic/abdominal viscera).
✔✔Pulmonary veins - ✔✔Return oxygenated blood to left atrium from lungs. Only veins
that carry oxygenated blood.
✔✔Superior vena cava - ✔✔Drains head, neck, and upper extremities into right atrium.
✔✔Adrenal glad - ✔✔Secretes epinephrine, norepinephrine, and corticosteroids.
,✔✔Ectopic focus - ✔✔Displaced central point of origin for cardiac dysrhythmias.
✔✔Inferior alveolar artery - ✔✔Supplies blood to teeth, mandible, lower lip, and chin.
✔✔Inferior vena cava - ✔✔Drains lower extremities and abdominal viscera into right
atrium.
✔✔Brachial artery - ✔✔Supplies blood to shoulder, arm, forearm, and hand.
✔✔Facial artery - ✔✔Supplies blood to face, tonsil, palate, and submandibular gland.
✔✔T's of pulseleas electrical activity - ✔✔Toxins, trauma, thrombosis, tension
pneumothorax, tamponade
✔✔H's of pulseless electrical activity - ✔✔Hydrogen ion, hypoxia, hypovolemia,
hypoglycemia, hypo/hyperkalemia, hypothermia.
✔✔Pulseless electrical activity (PEA) - ✔✔Normal appearing tracing, but patient has no
pulse.
✔✔Asystole - ✔✔Cessation of all contractions. "Flat line" usually follows v. fib or v. tach.
Treated with CPR.
✔✔Ventricular fibrillation v. fib - ✔✔Course v. fib with prominent, erratic baseline or fine
v. fib with far less pronounced vacillations. No p, qrs, or t. Often precedes asystole.
✔✔Class III - ✔✔Pt has severe systemic disturbance or disease.
✔✔Class IV - ✔✔Patient has a severe, life threatening systemic disorder.
✔✔Class V - ✔✔Patient is moribund with little chance of survival. Surgery is done in
desperation.
✔✔Class II - ✔✔Patient has mild to no systemic disturbance. Smokers included.
✔✔Class I - ✔✔Patient has no organic, biochemical, psychiatric, or physiological
disturbance.
✔✔Beta blockers - ✔✔Reduce the rate and force of contraction of the heart. (Atenolol)
✔✔Vasodilators - ✔✔Reduce the pressure vasculature. (Norvasc, lisinopril, diovan)
✔✔Diuretics - ✔✔Reduce the volume of fluid in system. Used to treat coronary artery
disease. (HCTZ, Lasix)
, ✔✔Hypertension - ✔✔Blood pressure of 140/90 or greater. (Hx of nosebleeds,
headaches, and dizziness)
✔✔Rate of ventricles - ✔✔20-40
✔✔Rate of AV node - ✔✔40-60
✔✔Rate of atria - ✔✔60-80
✔✔Arrest rhythms - ✔✔Ventricular dysrhythmias
✔✔Rate of SA node - ✔✔60-100
✔✔Social history review of systems - ✔✔Patients smoking and alcohol history/current
use should be noted along with illegal drug use.
✔✔Ventricular foci - ✔✔Located in ventricles
✔✔Supraventricular foci - ✔✔Located above level of ventricles in atria.
✔✔Antibiotic prophylaxis for total joint replacement patients - ✔✔Previous joint
infection, 2 yrs following joint replacement, malnourishment, hemophilia, diabetes type I,
immunosuppressed or immunocompromised patients.
✔✔AV blocks - ✔✔PR length is prolonged or varies in length due to impulse being
partially or completely blocked as it attempts to travel from atria to ventricles via AV
node.
✔✔Patients who need antibiotic prophylaxis - ✔✔Previous infective endocarditis,
prosthetic valves, cardiac transplant patients who develop valvulopathy, congenital
heart disease.
✔✔Congestive heart failure - ✔✔Condition caused by the heart is unable to handle
blood volume coming back to it from either the lungs or peripheral circulation.
✔✔3 characteristics of normal heart rhythms - ✔✔Rate, regularity, and rhythm.
✔✔MVP (mitral valve prolapse) - ✔✔One or more of valve flaps don't close completely
allowing redundancy of valve leaflets into left atrium.
✔✔Rheumatic heart diseases - ✔✔Condition caused secondary to rheumatic fever
(beta hemolytic streptococci) which damages the heart valves, primarily the mitral valve,
and causes heart murmur.