Lab Test 1 - Blood, Heart, BV's, B.Pressure & ECG
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| general function of RBC's | transport respitory gasses, ie oxygen & CO2
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| general function of platelets | cell fragments that assist in blood clotting
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| WBC's - Leucocytes | for defense, lg destinctive cell nucleus there are granular and Agranular kinds
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| granular names | neutrophils, eosinophils & basophils
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| Agranular names | lymphocytes & monocytes
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| neutrophils describe | 5 to 7 nucleus sections
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| eosinophils | phone reciever shape; red
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| basophils | blue U shape
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| lymphocyles | smallest; lg nucleus
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| monocytes | pacman;
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| purpose of Total White Count test is: | see if normal WBC's
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| purpose of Total Red Count test is: | see if normal RBC's
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| purpose of Differential White Blood Cell count is: | count to 100 WBC's on a grid; can tell if infection
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| Hematocrit | packed cell volumn for?
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| Hemoglobin concentration determination (tallquist method) | sample on paper and hold against chart
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| Hemoglobin concentration determination (Hemoglobinometer method) | put sample in color and line up w/ color
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| Sedimentation rate | how long it takes cells to settle
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| Coagulation time (often done before surgery) | test to see how long it takes to coagulate; should clot within 2-6 minutes
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| tunica externa | outer layer
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| tunica media | middle layer
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| tunica interna | innermost layer
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| lumen | opening,
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| valve | in veins but not arteries
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| cardiac cycle | compleat heartbeat
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| systole | contraction
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| diastole | relaxation
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| avg pulse rate | 70 to 76 beats per min in resting state
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| 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
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| significance of apical-radial pulse: | ?
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| blood pressure | pressure of B against vessel wall
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| systolic pressure | peak of ventricular contraction
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| diastolic pressure | time of ventricular relaxation
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| sph yg mo ma no meter | blood pressure cuff
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| Sounds of Kaor t koff | sounds B makes as it starts to flow back into arm
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| Apical | pulse a apex of heart
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| Radial | pulse at wrist
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| de polarization | relaxing
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| polarization | contracting
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| P wave | contraction of Atria
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| QRS complex | ventricular de polarization
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| Black Clip | baseline
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| Green Clip | negative
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| Red Clip | positive
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| Typical ECG consists of a series of repetitive: | waves that arise from a flat baseline called the isoelectric line
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| Varios deflections from the isoelectric line denote: | electrical activity during cardiac cycle
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| ECG has 5 major deflections: | P wave, QRS wave & T wave
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| one cardiac heart cycle cossists of: | 5 deflections, organized into 3 wave forms
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| _______ cardiac cycles per min for a normal adult at rest | 70-76
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| Cardiac cycle starts with: | P wave,
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| Cardiac cycle ends with: | T wave
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| P wave | atria contracting
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| QRS wave | ventricular depolarization (relaxing)
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| T wave: | peak;
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| atrial repolarization occurs while: | ventricles contracting and cancelled from view
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