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Med/Surg
Cardiac
53
Medical
Undergraduate 1
04/18/2010

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Term
petechiae
Definition
pin-head, mm sized hemorrhage
Term
purpura
Definition
hemorrhage < 1 cm
Term
eccymosis
Definition
hemorrhage > 1 cm
Term
hematoma
Definition
large, tumor-like swelling of blood
Term
hemophilia
Definition
x-linked, no blood coagulation
Term
thrombus
Definition
blood clot in cardiovascular system
Term
thrombosis
Definition
presence of blood clot in vessel
Term
predisposing factors for thrombus/thrombosis
Definition
atherosclerosis, bed rest, inactivity, pregnancy, general anesthesia
Term
embolus
Definition
detached thrombus or other mass which occluds a vessel
Term
embolism
Definition
obstruction of a vessel by an embolus
Term
sx of DVT
Definition
calf pain, tenderness, unilateral edema, warmth, redness, fever, Homan's sign
Term
arteriosclerosis
Definition
hardening of small arteries, narrowing of lumen, atherosclerosis is type of, group of diseases
Term
atherosclerosis
Definition
large arteries, atheromas, localized plaques, shoes, type of arteriosclerosis, lipid deposits in arteries
Term
LDL
Definition
"bad", liver -> periphery -> atheroma, norm <150 mg/dL
Term
HDL
Definition
"good", periphery -> liver, norm: < 4.0 males, 3.0 females
Term
HTN: primary vs. secondary vs. malignant
Definition
primary = 90%, idiopathic; secondary: assoc. lesion (renal, endocrine, etc.); malignant: uncontrolled, rapidly progressive
Term
ischemia
Definition
lack of blood supply at specific site
Term
anoxia
Definition
absence of oxygen to particular site
Term
hypoxia
Definition
lower oxygen level than norm
Term
collateral circulation
Definition
two sets of arteries shunt occluded section
Term
ankle-brachial index
Definition
norm: 0.7-0.9 using systolic, <0.7 indicator PVD
Term
intermittent claudication
Definition
muscle ischemia, cramping w/activity, relieved w/rest, LE
Term
necrosis vs. gangrene
Definition
necrosis: 2º lack of blood supply, gangrene: 2º bacterial invasion & putrefaction
Term
Raynaud's suspected associated conditions
Definition
SLE, scleraderma, RA, neurogenic lesions, thoracic outlet, Buerger's disease
Term
Buerger's Disease
Definition
inflammatory changes in small & med. vessels, arterial ischemia & phlebitis of distal extremities, associated w/smoking
Term
normal cardiac function
Definition
O2 supply, contractility of ventricles, electrical conduction
Term
cardiac output
Definition
HR + SV (stroke volume)
Term
endocardium
Definition
innermost membrane, lining chambers of heart
Term
myocardium
Definition
heart muscle
Term
epicardium
Definition
visceral membrane on top of myocardium
Term
pericardium
Definition
fibrous sac around heart
Term
etiology of infectious endocarditis
Definition
streptococcal bacteria, septic thrombophlebitis, prosthetic valve surgery, bone-skin-lung infection
Term
what does SA node do?
Definition
depolarize 60-100/min., depolarizing wave causes atrial contraction
Term
what does Bundle of His (AV bundle) do?
Definition
delay electrical impulse from SA node, then ventricular contraction (systole) via L & R bundle branches & Purkinje fibers
Term
what happens during diastole?
Definition
ventricles re-polarize & fill w/blood
Term
What happens if SA node crashes?
Definition
AV node takes over @ 40-60 BPM or ventricular pacemaker cells @ 25-40 BPM
Term
name 4 heart valves
Definition
tricuspid, pulmonary, mitral, aortic
Term
clinical manifestations of CAD
Definition
MI, angina, CHF, cardiac arrest
Term
stable vs unstable angina:
Definition
stable: exercise,exertion,emotion,heavy meal, few minutes, relieved by rest/meds; unstable angina: incr. freq.,sx unrelieved w/ASP or nitro, CP @ rest,nocturnal or @ rest
Term
describe clinical pathway of MI
Definition
occlusion of coronary arteries, decr. blood supply to area, ischemia & necrosis of myocardium
Term
what is t-PA?
Definition
tissue plasminogen activator, activates plasminogen to plasmin which is an enzyme that dissolves clots
Term
what is streptokinase?
Definition
enzyme that cleaves plasminogen to plasmin which is an enzyme that dissolves clots
Term
blood tests for MI DX
Definition
CPK-2 & SGOT enzymes; cardiac troponin
Term
HTN drugs
Definition
diuretics, vasodilators, beta blockers, ASA, statins
Term
heart failure drugs
Definition
diuretics, vasodilators, digitalis
Term
cardiac tests
Definition
stress test (exercise or drug), MRI, cath, CT scan, MRI, echocardiogram
Term
define CHF
Definition
congestive heart failure, heart can't keep up w/body's needs
Term
2 overall causes of CVA & intervations
Definition
hemorrhage(surgery)& infarction (anti-coagulants)
Term
atherectomy
Definition
rotorooter for artery
Term
valvoplasty
Definition
reconstruct heart valve
Term
valvotomy
Definition
cutting through stenosed cardiac valve
Term
valvectomy
Definition
valve removal
Term
what is ICD?
Definition
implanted cardioverter/defibrillator (L ventricular rhythm)
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