NCCT - Medical Procedures - Part D - Electrocardiography & Ua

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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

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