NCCT - Medical Procedures - Part D - Electrocardiography & Ua

49 Questions | By Gladys102103 | Updated: Mar 19, 2022 | Attempts: 4495

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NCCT - MEDICAL PROCEDURES - PART D - DIAGNOSTIC TESTING & LABORATORY PROCEDURES - ELECTROCARDIOGRAPHY & UA

Questions and Answers

1.

IN THE POSITIONING OF THE ELECTRODES, IF THE ELECTRODES ARE PLACED TOO 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.
  
  0.04 SEC
- D.
  
  0.09 SED
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.
  
  CARDICA ARREST
- B.
  
  PACEMAKER IMPLANT
- C.
  
  DEFIBRILLATION
- D.
  
  ENDARTERECTOMY
7.

WHICH OF THE FOLLOWING IS NOT A CRITERIA FOR SKIN PERPARATION 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 REGULAR
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 V1 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 & 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.
  
  UNIRFOR
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 POLARIZATION?
- 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