NHA CCMA Exam Graded A+
CC - Chief Complaint
Segment - Line between two waveforms
P Wave - Arterial Depolarization
How many 1mm boxes are in a 6 second rhythm strip? - 30 one millimeter boxes
The SA node represents which waveform on the EKG? - Only the P wave
What is the reading you can get from the RR interval? - Ventricular Pulse
What is the primary stage of Hemolisis? - Vascular phase and platelet phase together
What is electrophoresis? - Analyzation of the chemical components of blood, e.g.hemoglobin serum, urin, cerebrospinal fluid based on electrical charge.
Positive testing for occult blood in a stool sample turn which color? - Turns blue on a positive test for a occult blood in feces.
The stages of hemostasis: - 1. vascular, 2. platelet phase, 3. coagulation phase, 4.fibronolysis
Blood vessels - aorta, arteries, arterioles, capillaries, venues, veins, superior and inferior vena cavae
Outer connective tissue layer of a blood vessel - tunica adventitia
Inner endothelial tissue of a blood vessel - tunica intima
The inner smooth layer of a blood vessel - tunica tunica media
The standards of right and wrong in a medical setting - code of ethics
What do you find in capillaries? - a mixture of venous and arterial blood is found
The adverage adult has how many liters of blood? - 5-6 liters
Whar is the percentage of water in blood? - 92% 1 / 3
Percentage of plasma in blood - 55%
Percentage of formed elements in blood - 45%
99% of formed elements in blood - RBC's or erythrocytes
Where you find hemoglobin - RBC'd
Where do all blood cells originate? - bone marrow
How many RBC's per microliter of blood - 4.2-6.2 million
Whar is the sencond most numerous WBC? - Lymphocyte with 20-40%
Thier number increase in intracellular infections and TB - monocytes
Their numbers increase in bacterial infections and often are first on scene. - Neutrophils
These WBC's play an important role in viral infection as well as in immunity. - Lymphocytes
Number of leukocytes for average adult per microliteras well as in immunity. - Lymphocytes
Number of leukopenia for average adult per microliter - 5000-10000
Leukopenia - Decrease in WBC's seen with viral infection and leukemia
Comprises 3-8% of WBC or leukocytes - Monocytes
Largest in size of the leukocytes - Monocytes
Carries histamine - Basophil
Injury to blood vessel that causes it to constrict, slowing the clod of blood - Vascular phase of hemostasis
Preferred site for veinpuncture - Antecubital fossa
Test used to evaluate the intrinsic pathway and monitor heparin therapy - APTT also known as PTT 2 / 3
Test used to evaluate the extrinsic pathway and also used to monitor warfarin therapy - PT Fibrinolysis - breakdown and removal of clot
Converts the temporary platelet plug into a stable fibrin clot - coagulation phase
2nd choice vein for venipuncture and most often the only one palpatable in an obese patient - cephalic vein
Antiseptics used in phlebotomy - 70% isopropyl alcohol pads most common, provolone- iodine for BC's and chlorhexidine gluconate for patients that are allergic to betadine/iodine
Length of needle commonly used in venipuncture - 1 inch (up to 1.5")
Hemolysis - the rupture or destruction of red blood cells.
Gauge of needle that can cause hemolysis - smaller thatn 23 gauge
Average gauge of needle used for drawing blood - 21-22
- skills of the phlebotomist - Social, clerical ,technical
Analytical errors during collecting blood - Extended tourniquet time, hemolysis, wrong order of draw, failure to invert tubes, faulty technique under filling tubes.
Analytical errors before collection of blood - Patient misidentification, impropertimes, wrong tube, not fastingm exercise (cortisol levels), pt psture, poor coorfination with other treatments, improper sire prep, medication interference
Analytical errors after blood callections - Failure to separate serum from cell (gycolisis), improper use of serum separator (not inverting tubes or not spinning tubes) delays in precessing, exposure to light, improper storage condition, dimming clots
Fistula - Permanent surgical connection between an artery and a vein, never used for venipuncture
Edima - Accumulation of fluid in tissue
Thrombophlebitis - Inflammation of a vein with clot formation
Explanation of hemoconcentration - The increase in proportion of formed elements to
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