← Med 135 Final Exam Review Phlebotomy 12/2011 Export Options Alphabetize Word-Def Delimiter Tab Comma Custom Def-Word Delimiter New Line Semicolon Custom Data Copy and paste the text below. It is read-only. Select All V1 4th intercostal space at right margin of sternum is placement of what lead? V2 4th intercostal space at left margin of sternum is placement of what lead? V3 Midway between V2-V4 is placement of what lead? V4 5th intercostal space at junction of left midclavicular line, is placement of what lead? V5 At horizontal level with V4, at left anterior axillary line is placement of what lead? V6 At horizontal level with V4, at left midaxillary line is placement of what lead? Lead I What lead is bi-polar and reads from RA-LA? Lead II What lead is bi-polar and reads from RA- LL? Lead III What lead is bi-polar and reads from LA-LL? Blood culture, yellow, light blue, red-gold-tiger, green, lavender, gray Order of draw (Saydees) Blood culture, yellow, light blue, red-gold-tiger, green, lavender, pink, white, royal blue, gray, dark blue Order of draw in our book: antecubital space What is the most common site for venipuncture median cubital, basilic, cephalic What veins are most often used for venipuncture? up The bevel should always be: 3-4" above selected site Where should the placement of the tourniquet go? EDTA (ethylenediaminetetraacetic acid) What additive is in a lavender tube? sodium citrate What additive is in a light blue tube? To avoid rolling or moving of vein Why do we anchor veins? Pressure on site, elevate if possible, ice area for 20 minutes How do you care for a hematoma? Invert several times (varies depending on additive) What do you do with a tube that has an additive? May be contaminated with interstitial tissue fluid Why do we wipe away the first drop of blood during a capillary draw? 25 gauge What is the smallest needle used in a venipuncture? collapses What happens to a vein if you pull to quickly on the plunger with a syringe draw? Isoelectric, flat line, 0 voltage line; Separates the varies waves and there is no electrical activity What are all the names for the baseline and what does it mean? Get pt to relax, ensure clean skin, proper lead placement, no artifacts How do you get a good quality EKG/ECG? Shave and clean the area What do you do if your patient has a hairy chest and the electrodes don't stick? Precordial and V leads Chest leads are also called: V1, V2, V3, V4, V5, V6 Chest leads are labeled: 10-15 degrees What angle do you use to insert a needle for a venipuncture? Amount of electrical activity produced by the heart. The electrocardiogram is a reading of what? The doctor or an automatic ECG machine; and it is done by comparing 2 different tracings from the same patient Who diagnosis the EKG and how is it done? Voluntary/involuntary muscle movements, muscle tremor, apprehensive patient, coughing, sneezing, talking What are causes of a somatic tremor? Better conduction of electricity on the leads Why do we use electrolyte? syringe, butterfly What needles do you see a "flash" of blood on? Ventricular repolarization What does the T wave represent? Ventricular depolarization What does the QRS complex represent? SA node What is the pacemaker of the heart? Electrical interference What is AC interference? Improper grounding, other electrical equipment in room, wiring in walls, floor or ceiling, crossed lead wires What causes AC interference? 3rd or 4th digit on the hand, upper side but not too close to the cuticle Where is the capillary draw performed? Medial or lateral portion of the plantar surface Where is a heel stick performed? Blood groups: A, B, O, AB Define ABO Hematocrit Hct Packed RBC volume of a given sample What does Hematocrit measure? erythrocyte sedimentation rate ESR destruction of RBC's and release of hemoglobin What is hemolysis? 12 How many leads are on an EKG? 10 How many sensors are on an EKG?