CMA 4 Flashcards
Which organization developed the guidelines for universal precautions?
A. EPA
B. FDA
C. CDC
D. OSHA
C
According to OSHA, medical personnel must wear PPE when the contact following?
A. Sweat
B. Skin
C. Tears
D. Blood
D
To detect pregnancy, either urine or blood serum is tested for the presence of which of the following?
A. Febrile agglutinations
B. Potassium oxalate
C. HCG hormone
D. Oxytocin
C
A bacteriological culture needs to be performed on a collected urine specimen. Which of the following instructions what your patient should do?
A. Collect a midday specimen in a sterile cup
B. Void a specimen in a sterile cup.
C. Collect a 24-hour specimen
D. Void the entire specimen is a sterile cup
B
If a urine specimen is collected and then left standing for more than 1 hour, bacteria will grow, causing the pH of the urine to soon become which of the following?
A. Highly acidic
B. Slighly acidic
C. Alkaline
D. Neutral
C.
What is the pH range for normal urine?
A. 2.5 - 4.5
B. 2.5 - 7.0
C. 4.5 - 8.0
D. 0 -9.0
C
If a patient normally drinks 10 or more 8oz glasses of water each day, urine would most likely be which color?
A. Brown
B. Red
C. Dark yellow
D. Straw
D
Urine needs to be collected in which type of container if it is collected for baterial culture?
A. Freshly disinfected
B. Sterile
C. Washed and dried
D. Glass
B
A routine analysis of urine is made up of which of the following sets of examinations?
A. Visual, culture, reagent
B. Microscopic, Chemical, Physical
C. Microscopic, Reagent, Chemical
D. Microscopic, Analytic, Chemical
B
To prevent a urine specimen from an unreliable pH sample, the specimen should be which of the following?
A. Always refrigerated immediately upon collection
B. Exposed to air for slightly more than 1 hour
C. Tested within 1 hour of collection
D. Allowed time for urea to convert to ammonia in order to decreased the pH.
C
When placing a urine specimen tube into the centrifuge for later creating a wet mount, where should you place an identical tube containing water in that same centrifuge?
A. A second tube is not required
B. Right beside the tube containing the specimen
C. At an 90 degree angle from the urine specimen tube
D. Directly opposite the tube containing the urine sample
D
What is the principal reason for bracing the hand holding the needle assembly against the patient’s arm during phlebotomy?
A. Prevent excess needle movement
B. Ease vein palpation
C. Decrease the possibility of hemolysis
D. Cause the evaluation tubes to fill more quickly.
A
When a reagent strips is used to test a urine specimen and the result is positive for ketones, this may be an indication of which condition?
A. Hypercalcemia
B. Poisoning
C. Diabetes Mellitus
D. Liver Damage
C
What is the measure of the degree of acidity or alkalinity of urine called?
A. Specific gravity
B. Routine urinalysis
C. pH
C. Supernatant
C
All the steps listed are appropriate when a capillary puncture except for which of the following?
A. Gently rubbing the sides of the finger
B. Discarding the 1st drop of blood
C. Selecting the ring finger of the hand
D. Placing a tourniquet around the finger
D
When would a capillary blood sample be diluted with tissue fluid?
A. It is immersed in cold blood
B. The first drop is discarded
C. The finger is squeezed excessively
D. The sides of the finger are gently rubbed
C
Which of the following is the most common micropuncture site on an adult?
A. Outer heel
B. Ring Finger
C. Ear Lobe
D. Little finger
B
To transport oxygen and carbon dioxide to and from the body’s cell, what do erythrocytes need?
A. Bilirubin
B. Nitrates
C. Hematocrit
D. Hemoglobin
D
Which of the following is NOT a reason to perform a hemoglobin?
A. To aid in determining blood loss
B. To detect anemia
C. To monitor dehydration
D. To detect inflammation
D
Of the following, which does NOT demonstrate quality control?
A. Proper documentation
B. Testing with control samples
C. Calibrating equipment
D. Treating ever customer properly
D
After you have washed your hands, out on PPE, and assembled the equipment and supplies, what is your next step in obtaining a capillary blood sample?
A. Perform the capillary puncture
B. Cleanse the puncture site with alcohol wipe
C. Identify the patient.
D. Ask the patient whether they are left handed or right handed,
C
What can you do lower the risk of bruising after venipuncture?
A. Apply a heating pad to the puncture site and have the patient bend his or her arm to keep it in place
B Apply pressure to the puncture site
C. Keep the tourniquet in place for 1 minute the procedure
D. Wipe the puncture site with an alcohol wipe
B
While performing venipuncture, you notice that a hematoma is forming. Which of the following should you NOT do?
A. Remove the tourniquet
B. Complete the collection of the specimen
C. Remove the vacuum tube and needle
D. Apply pressure to the site
B
Which needle gauge will result in less blood cell damage during venipuncture collection?
A. 16-gauge
B. 18-gauge
C. 20-gauge
D. 21-gauge
A
Vacuum tubes used in venipuncture have different color tubes. What is the reason for this differentiation among the colored tops?
A. Tube quantity levels
B. Tubes sizes
C. Preferred collection method
D. Additives that may be within
D
A setup for venipuncture should always included extra of which of the following?
A. Blood pressure cuffs
B. Sharps containers
C. Tourniquets
D. Vacuum tubes
D
In which color-topped tube is it acceptable for a blood clot to form?
A. Lavender
B. Green
C. Light blue
D. Red
D
A clinical medical assistant should never a tourniquet on the arm for longer than the following?
A. 45 sec
B. 60 sec
C. 90 sec
D. 120 sec
B
What is the primary purpose for anchoring a vein in performing a venipuncture?
A. To keep the patient comfortable
B. To keep the patient from moving
C. To prevent it from rolling
D. To prevent it from collapsing
C
What angle should your needle be in to perform venipuncture?
A. 35 degree with bevel up
B. 20 degree with bevel down
C. 15 degree with bevel up
D. 15 degree with bevel down
C
Which of the following is NOT an example of properly disposed venipuncture equipment and supplies?
A. Placing used gauze and cotton balls in a biohazard container
B. Placing the plastic venipuncture needle cover in a biohazard container
C. Placing the used needle and holder together into a puncture-proof container
D. Placing used alcohol wipe in a wastebasket
B
EDTA is present in which color topped tube?
A. Light blue
B. Gray
C. Pink
D. Lavender
D
Which color-topped vacuum tube is used to collect specimens for tests requiring serum?
A. Light blue
B. Gray
C. Red
D. Green
C
Red topped contains no additive, allowing the blood to clot
Serum is used for blood chemistry and for viral and serologic testing
What is the usual size of needle used when performing a venipuncture?
A. 1/2 inch 23 gauge
B. 1/2 inch 27 gauge
C. 1 inch 24 gauge
D. 1 1/2 inch 21 gauge
D
What is the purpose of the plastic collection tube holder?
A. Prevent blood leakage before needle withdrawal
B. Prevent blood specimen contamination
C. Aid insertion and withdrawal of blood vacuum tubes
D. Protect against accidental needle puncutures
C
Which color on a vacuum tube top indicates that the blood specimen will be used for cultures?
A. Red
B. Blue
C. Light Blue
D. Yellow
D
Which electrode is not part of the ECG recording?
A. RA
B. aVR
C. RL
D. LL
C
RL is considered the ground leg
What is the term for the relaxing phase of the cardiac cycle?
A. Systole
B. Repolarization
C. Polarization
D. Bradycardia
B
Which of the following is an example of an ECG precordial lead?
A. V4
B. aVR
C. I
D. aVR
A
Which colored top for the evacuation tube is most commonly associated with hematology testing?
A. Green
B. Red
C. Lavender
D. Light blue
C