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A&P11 -

Lab Test 1 - Blood, Heart, BV's, B.Pressure & ECG

?Ans
general function of RBC's transport respitory gasses, ie oxygen & CO2
general function of platelets cell fragments that assist in blood clotting
WBC's - Leucocytes for defense, lg destinctive cell nucleus there are granular and Agranular kinds
granular names neutrophils, eosinophils & basophils
Agranular names lymphocytes & monocytes
neutrophils describe 5 to 7 nucleus sections
eosinophils phone reciever shape; red
basophils blue U shape
lymphocyles smallest; lg nucleus
monocytes pacman;
purpose of Total White Count test is: see if normal WBC's
purpose of Total Red Count test is: see if normal RBC's
purpose of Differential White Blood Cell count is: count to 100 WBC's on a grid; can tell if infection
Hematocrit packed cell volumn for?
Hemoglobin concentration determination (tallquist method) sample on paper and hold against chart
Hemoglobin concentration determination (Hemoglobinometer method) put sample in color and line up w/ color
Sedimentation rate how long it takes cells to settle
Coagulation time (often done before surgery) test to see how long it takes to coagulate; should clot within 2-6 minutes
tunica externa outer layer
tunica media middle layer
tunica interna innermost layer
lumen opening,
valve in veins but not arteries
cardiac cycle compleat heartbeat
systole contraction
diastole relaxation
avg pulse rate 70 to 76 beats per min in resting state
9 pulse points are: temporal artery, facial artery, conmmon carotid artery, brachial artery, radial srtery, femoral artery, popliteal artery, posterior tibial artery and dorsalis pedis artery
significance of apical-radial pulse: ?
blood pressure pressure of B against vessel wall
systolic pressure peak of ventricular contraction
diastolic pressure time of ventricular relaxation
sph yg mo ma no meter blood pressure cuff
Sounds of Kaor t koff sounds B makes as it starts to flow back into arm
Apical pulse a apex of heart
Radial pulse at wrist
de polarization relaxing
polarization contracting
P wave contraction of Atria
QRS complex ventricular de polarization
Black Clip baseline
Green Clip negative
Red Clip positive
Typical ECG consists of a series of repetitive: waves that arise from a flat baseline called the isoelectric line
Varios deflections from the isoelectric line denote: electrical activity during cardiac cycle
ECG has 5 major deflections: P wave, QRS wave & T wave
one cardiac heart cycle cossists of: 5 deflections, organized into 3 wave forms
_______ cardiac cycles per min for a normal adult at rest 70-76
Cardiac cycle starts with: P wave,
Cardiac cycle ends with: T wave
P wave atria contracting
QRS wave ventricular depolarization (relaxing)
T wave: peak;
atrial repolarization occurs while: ventricles contracting and cancelled from view