NCCT Practice Test - Labs Part Two
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This is from section V of the big study book.
- 1.In the positioning of the electrodes, if the electrodes are placed to close together, the amplitude will be ______.
- A.
Small
- B.
Large
- C.
Round
- D.
Square
- 2.The large squares on the ECG paper are equal to
- A.
0.10 sec
- B.
0.20 sec
- C.
0.40 sec
- D.
0.09 sec
- 3.A "V wave" will _____ be seen in a normal EKG.
- A.
Always
- B.
Sometimes
- C.
Never
- D.
Usually
- 4.The _____ switch controls the gain or amplitude on the EKG.
- A.
Major
- B.
Sensitivity
- C.
Red
- D.
Ticker
- 5.When preparing for lead placement you should first care for ______.
- A.
Skin preparation
- B.
Application of electrode wires
- C.
Application of electrodes
- D.
Positioning of electrodes
- 6.Conversion of a dysrhythmia to a normal rhythm by applying electric shock to the chest is called ___.
- A.
Cardiac scan
- B.
Pacemaker implant
- C.
Defibrillation
- D.
Endarterectomy
- 7.Which of the following is not a criteria for skin preparation for lead placement?
- A.
Clean the skin with an alcohol swipe
- B.
Make sure the skin is damp when applying the electrode
- C.
Shave the hair from the skin
- D.
Roughen the skin for better dermis contact
- 8.The electrode site should be _____.
- A.
Clean, smooth, and dry
- B.
Hairy
- C.
Have plenty of skin oil present
- D.
Moist
- 9.An ECG tracing measures the amount of voltage and the ____ it takes for the voltage to travel throughout the heart.
- A.
Time
- B.
Route
- C.
Waves
- D.
Lines
- 10.In the application of electrodes, secure the electrode by rubbing your finger around the _____ area.
- A.
Center
- B.
Gel
- C.
Adhesive
- D.
Peripheral
- 11.When there is no variation of R-R intervals it is called ______.
- A.
Irregular with a pattern
- B.
Absolutely regular
- C.
Essentially regular
- D.
Totally irregular
- 12.Ventricular depolarization produces an electrical force or vector with 2 components: 1. magnitude or force, and 2. _____.
- A.
Amplitude
- B.
Ground electrode
- C.
Direction or shape
- D.
Polarization
- 13.A downward or negative wave of an electrocardiogram following the P wave is the _____.
- A.
R wave
- B.
T wave
- C.
Q wave
- D.
S wave
- 14.A premature ventricular contraction (PVC) where the QRS have the same configuration each time they appear is called ______.
- A.
Uniform
- B.
Malignant
- C.
Fused
- D.
Bigeminy
- 15.When applying leads, apply the VI lead _______.
- A.
Directly lateral to V4 at the anterior axillary line
- B.
The fourth intercostal space right sternal border
- C.
Lateral to V5 at midaxillary line
- D.
Fifth intercostal space midclavicular line
- 16.Which fact is true about the P wave?
- A.
Duration of the P wave is not greater than 0.11 sec
- B.
Height deflection is small, not more than 3mm
- C.
Both A and B
- D.
No correct answer
- 17.When PVC's fall on the T wave, occur in pairs, runs of 3 or more, or are multiform in nature, these conditions are called _____.
- A.
Fused
- B.
Multiform
- C.
Life threatening
- D.
Uniform
- 18.When a vector travels away from the positive electrode, a _____ deflection results.
- A.
Positive
- B.
Variation
- C.
T wave
- D.
Negative
- 19.The combination of sensors or electrodes used for lead #1 is ______.
- A.
Right arm, left leg
- B.
Right arm, right leg
- C.
Left arm, right arm
- D.
Left arm, left leg
- 20.Concerning ECG's for irregular rhythms, any method of rate calculation that depends on intervals between complexes is _____.
- A.
Acceptable
- B.
Computed using 1/2 as fast: 300/2 = 150/minute
- C.
Unreliable
- D.
Computed by counting the number of complexes in a span of 30 large boxes
- 21.The ______ wave represents atrial depolarization
- A.
S
- B.
P
- C.
R
- D.
U
- 22.While the duration of the ST segment is not generally of clinical significance, it is an exceedingly important portion of the ECG because of _____.
- A.
The fact that it follows the QRS complex
- B.
Shifts up or down from the baseline
- C.
Upward deflection from the baseline
- D.
The shift away from the ischemic area
- 23.A QRS measurement of less than _____ seconds indicates a supraventricular pacemaker.
- A.
0.13
- B.
0.14
- C.
0.16
- D.
0.12
- 24.The area between waves is referred to as _____.
- A.
Back spaces
- B.
Intervals
- C.
Segments
- D.
Cycles
- 25.A terminal lethal dysrhythmia, a dying heart, is called _____.
- A.
Agonal
- B.
Asystole
- C.
Agonist
- D.
Agogue
- 26.A rapid, irregular succession of chaotic bizarre waves; wide, irregular ocillations of the baseline is called ventricular _____.
- A.
Fibrillation
- B.
Standstill
- C.
Tachycardia
- D.
Rhythm
- 27.When the heart rhythm is abnormal it is referred to as ____.
- A.
Patent ductus arteriosus
- B.
An arrhythmia
- C.
An aneurysm
- D.
An embolism
- 28.The absence of one or more complete cardiac cycles where the rhythm is interrupted is referred to as ______.
- A.
Atrial flutter
- B.
Sinus arrest
- C.
Ventricular arrhythmia
- D.
Sinus wenckebach
- 29.A speical device called a "regulator" or "flow meter" is necessary when using _____.
- A.
An electric thermometer
- B.
A hot pad
- C.
Oxygen
- D.
A sphygmomanometer
- 30.Oxygen is administered to the patient by way of a ______.
- A.
Catheter
- B.
Cannula
- C.
Tent
- D.
All choices
- 31.The clean catch urine specimen is also called _____.
- A.
Clean voided specimen
- B.
24 hr urine specimen
- C.
Mid stream specimen
- D.
Both a and c
- 32.A 24 hour urine specimen should be ____.
- A.
Kept at body temperature
- B.
Left open to the air
- C.
Kept at room temperature
- D.
Chilled/refrigerated
- 33.The fresh fractional urine specimen is used to test urine for ______.
- A.
T.B.
- B.
Pneumonia
- C.
Sugar
- D.
High blood pressure
- 34.Another term for acetone in the urine is ______.
- A.
Sugar
- B.
Pus
- C.
Ketone bodies (ketones)
- D.
No correct answer
- 35.Which test measures both sugar and acetone in the urine?
- A.
Acetest
- B.
Clinitest
- C.
Testape
- D.
Keto-diastix
- 36.To help classify bacteria into two groups; gram positive and gram negative is a special stain called _____.
- A.
Glass stain
- B.
Gram stain
- C.
Germicide
- D.
Bacteria stain
- 37.When preparing a blood smear from a skin puncture you should ____ the first drop.
- A.
Collect
- B.
Use
- C.
Wipe away
- D.
Wash off
- 38.When you pull the second slide apart from the first slide, let them ______.
- A.
Stand for one hour
- B.
Stand for four minutes
- C.
Air dry
- D.
Blow on them to dry them
- 39.When preparing a blood smear, the spreader slide must be made of ______.
- A.
Foil
- B.
Steel
- C.
Plastic
- D.
Glass
- 40.Which of these is crucial in making a blood smear for a differential blood count?
- A.
Edges should be thicker than the rest
- B.
Edges should be feathered
- C.
Smear must be at least 1.5in long
- D.
Edges should be in a straight line
- 41.The glucose tolerance test is a ____ test.
- A.
Saliva
- B.
Timed
- C.
Finger stick
- D.
Dangerous
- 42.While ordering procedures may vary, generally a type and RH are ordered on all pregnant women. This normally is called a ______ screen.
- A.
Blood
- B.
Serum
- C.
Prenatal
- D.
Postnatal
- 43.Certain types of cultures, such as deep wound cultures could contain anaerobic pathogens. Which of the following conditions is required for their growth?
- A.
Light and oxygen
- B.
Absence of oxygen
- C.
Light and the absence of oxygen
- D.
No correct answer
- 44.To obtain a specimen for a throat culture the _____ must be swabbed.
- A.
Nasopharynx and tonsillar area
- B.
Back of the tongue and epiglottis
- C.
Under the tongue and along the gum line
- D.
No correct answer
- 45.A CLIA waived pregnancy test is based on the detection of which one of the following?
- A.
Testosterone
- B.
Human chorionic gonadotropin
- C.
Progesterone
- D.
Estrogen
- 46.When performing and CLIA waived test it is important to do which one of the following?
- A.
Keep all CLIA waived tests refrigerated
- B.
Discard quality control kits immediately upon opening the box
- C.
Perform quality control testing with every new kit and routinely thereafter
- D.
All answers are correct
- 47.Performing routine maintenance on laboratory equipment is critical. The maintenance plan should include which one of the following?
- A.
Regularly scheduled check ups
- B.
Daily examination of equipment for frayed cords or broken parts
- C.
Routine cleaning of the outside of the equipment with a damp cloth
- D.
All answers are correct
- 48.When testing for occult blood which of the following specimens would be required?
- A.
Stool sample
- B.
Urine
- C.
Semen
- D.
Blood
- 49.When providing a patient instructions on the collection of a sample for occult blood testing, which of the following statements is correct?
- A.
Dietary modifications must occur for 48 hours prior to collection of the specimen
- B.
The patient should consume 20 oz of red meat in the four hours prior to the collection of the specimen
- C.
The patient should limit dairy
- D.
There are no restrictions on medications- the patient should take all medications as prescribed
- 50.In the medical office the most frequently performed pulmonary function test is _____.
- A.
Nebulization
- B.
Spirometry
- C.
Sigmoidoscopy
- D.
Mantoux test
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