BAYCARE EKG EXAM EVALUATION 2025/2026 QUESTIONS
AND ANSWERS GRADED A++
✔✔Bipolar leads - ✔✔Have a positive pole and a negative pole..
✔✔AVR has its positive pole on the - ✔✔Right arm..
✔✔If lead II's QRS complex is positive, the heart's current is traveling toward the -
✔✔Left leg..
✔✔The bipolar lead formed by joining the right arm and left leg is - ✔✔Lead II..
✔✔AVL has its positive pole on the - ✔✔Left arm..
✔✔An impulse that travels away from a positive electrode will write a(n) _____ on the
EKG - ✔✔Negative QRS complex
✔✔In which lead should the tallest QRS complex be seen? - ✔✔Lead II.
✔✔In which of the following leads should the QRS complex be negative? - ✔✔AVR.
✔✔V1 through V6 are the - ✔✔Precordial leads..
✔✔Joining leads I, II, and III at their ends produce - ✔✔Einthoven's triangle..
✔✔AVF's negative reference point is formed by finding the midway point between which
limbs? - ✔✔Right arm and left arm
✔✔Some modern EKG machines are Bluetooth-capable, allowing EMS workers to -
✔✔Transmit the EKG to the nearest hospital so workers can prepare for the patient's
arrival..
✔✔To minimize artifact, what must be done? - ✔✔Attach electrode patches securely
Tell the patient not to move during the EKG
✔✔The artifact caused by the jiggling of wires during toothbrushing is called -
✔✔Toothbrush Tachycardia.".
✔✔The "gain" setting on the EKG machine is concerned with - ✔✔The amplitude of the
waves and complexes..
,✔✔Your patient for a 12-lead EKG has no legs as a result of bilateral amputations.
Where should you put the leg electrodes? - ✔✔On the lower abdomen above where the
legs would be.
✔✔Small adhesive patches with conductive gel on the skin side are - ✔✔Electrodes..
✔✔The most common cause for the P wave, QRS complex, and T wave to be inverted
in lead I is - ✔✔Incorrect lead placement..
✔✔Electrically speaking, the heart is a - ✔✔Transmitter..
✔✔Electrical shock is LEAST likely to be caused by which of the following? -
✔✔Properly maintained EKG machine.
✔✔Somatic tremor artifact is commonly caused by - ✔✔Patient movement..
✔✔Muscle artifact can be minimized by monitoring the patient in lead - ✔✔V1 or MCL1..
✔✔Your patient is smiling and visiting with family, but the cardiac monitor shows that
the patient's heart has completely stopped. The rhythm on the monitor is thus -
✔✔Artifact..
✔✔If artifact is present in leads I, II, and AVR, the most likely source of the artifact is on
the - ✔✔Right arm..
✔✔On your patient's 12-lead EKG, lead I's waves and complexes are completely
negative. AVR's waves and complexes are completely positive. The most likely cause of
this is - ✔✔Right and left arm leads inadvertently reversed
✔✔Normal paper speed for printing out the EKG is - ✔✔25 mm/sec..
✔✔Which of the following is NOT a method of calculating heart rate? - ✔✔The P-P
interval method..
✔✔A regular rhythm is one in which the R-R intervals - ✔✔Vary by only one or two little
blocks..
✔✔The mean rate is calculated by - ✔✔Counting the number of QRS complexes on a
six-second strip and multiplying by 10..
✔✔Which of the following is a method of calculating heart rate?
Select one:
a. Six-second strip method
, b. The QT interval method
c. The P-P interval method
d. All of the above - ✔✔Six-second strip method.
✔✔An irregular rhythm is one in which
Select one:
a. The R-R intervals vary "all over the place."
b. The R-R intervals vary by only one or two little blocks.
c. There are premature beats or pauses that interrupt the otherwise regular rhythm.
d. The QRS complexes do not look alike.
Feedback - ✔✔The R-R intervals vary "all over the place.".
✔✔Regularity of a rhythm is determined by measuring the
Select one:
a. P-P intervals.
b. QRS intervals.
c. R-R intervals.
d. Distance between consecutive U waves. - ✔✔R-R intervals..
✔✔The type of regularity in which the QRS complexes vary wildly throughout the
rhythm strip is
Select one:
a. Regular.
b. Regular but interrupted by premature beats.
c. Regular but interrupted by pauses.
d. Irregular. - ✔✔Irregular..
✔✔The most accurate way to determine heart rate would be to
Select one:
a. Count the number of P waves in a minute-long rhythm strip.
b. Count the number of QRS complexes in a minute-long rhythm strip.
c. Count the number of QRS complexes on a six-second strip and multiply by 10.
d. Count the number of P waves on a six-second strip and multiply by 10. - ✔✔Count
the number of QRS complexes in a minute-long rhythm strip..
✔✔If the patient's rhythm changes, you should FIRST
Select one:
a. Assess your patient for signs of decreased cardiac output.
b. Calculate the heart rate, rhythm, and intervals.
c. Change the lead to see if the rhythm is real or if it's artifact.
d. Look for P waves. - ✔✔Assess your patient for signs of decreased cardiac output..
✔✔The normal rhythm originating in the sinus node should have a heart rate
Select one:
a. Greater than 100.
AND ANSWERS GRADED A++
✔✔Bipolar leads - ✔✔Have a positive pole and a negative pole..
✔✔AVR has its positive pole on the - ✔✔Right arm..
✔✔If lead II's QRS complex is positive, the heart's current is traveling toward the -
✔✔Left leg..
✔✔The bipolar lead formed by joining the right arm and left leg is - ✔✔Lead II..
✔✔AVL has its positive pole on the - ✔✔Left arm..
✔✔An impulse that travels away from a positive electrode will write a(n) _____ on the
EKG - ✔✔Negative QRS complex
✔✔In which lead should the tallest QRS complex be seen? - ✔✔Lead II.
✔✔In which of the following leads should the QRS complex be negative? - ✔✔AVR.
✔✔V1 through V6 are the - ✔✔Precordial leads..
✔✔Joining leads I, II, and III at their ends produce - ✔✔Einthoven's triangle..
✔✔AVF's negative reference point is formed by finding the midway point between which
limbs? - ✔✔Right arm and left arm
✔✔Some modern EKG machines are Bluetooth-capable, allowing EMS workers to -
✔✔Transmit the EKG to the nearest hospital so workers can prepare for the patient's
arrival..
✔✔To minimize artifact, what must be done? - ✔✔Attach electrode patches securely
Tell the patient not to move during the EKG
✔✔The artifact caused by the jiggling of wires during toothbrushing is called -
✔✔Toothbrush Tachycardia.".
✔✔The "gain" setting on the EKG machine is concerned with - ✔✔The amplitude of the
waves and complexes..
,✔✔Your patient for a 12-lead EKG has no legs as a result of bilateral amputations.
Where should you put the leg electrodes? - ✔✔On the lower abdomen above where the
legs would be.
✔✔Small adhesive patches with conductive gel on the skin side are - ✔✔Electrodes..
✔✔The most common cause for the P wave, QRS complex, and T wave to be inverted
in lead I is - ✔✔Incorrect lead placement..
✔✔Electrically speaking, the heart is a - ✔✔Transmitter..
✔✔Electrical shock is LEAST likely to be caused by which of the following? -
✔✔Properly maintained EKG machine.
✔✔Somatic tremor artifact is commonly caused by - ✔✔Patient movement..
✔✔Muscle artifact can be minimized by monitoring the patient in lead - ✔✔V1 or MCL1..
✔✔Your patient is smiling and visiting with family, but the cardiac monitor shows that
the patient's heart has completely stopped. The rhythm on the monitor is thus -
✔✔Artifact..
✔✔If artifact is present in leads I, II, and AVR, the most likely source of the artifact is on
the - ✔✔Right arm..
✔✔On your patient's 12-lead EKG, lead I's waves and complexes are completely
negative. AVR's waves and complexes are completely positive. The most likely cause of
this is - ✔✔Right and left arm leads inadvertently reversed
✔✔Normal paper speed for printing out the EKG is - ✔✔25 mm/sec..
✔✔Which of the following is NOT a method of calculating heart rate? - ✔✔The P-P
interval method..
✔✔A regular rhythm is one in which the R-R intervals - ✔✔Vary by only one or two little
blocks..
✔✔The mean rate is calculated by - ✔✔Counting the number of QRS complexes on a
six-second strip and multiplying by 10..
✔✔Which of the following is a method of calculating heart rate?
Select one:
a. Six-second strip method
, b. The QT interval method
c. The P-P interval method
d. All of the above - ✔✔Six-second strip method.
✔✔An irregular rhythm is one in which
Select one:
a. The R-R intervals vary "all over the place."
b. The R-R intervals vary by only one or two little blocks.
c. There are premature beats or pauses that interrupt the otherwise regular rhythm.
d. The QRS complexes do not look alike.
Feedback - ✔✔The R-R intervals vary "all over the place.".
✔✔Regularity of a rhythm is determined by measuring the
Select one:
a. P-P intervals.
b. QRS intervals.
c. R-R intervals.
d. Distance between consecutive U waves. - ✔✔R-R intervals..
✔✔The type of regularity in which the QRS complexes vary wildly throughout the
rhythm strip is
Select one:
a. Regular.
b. Regular but interrupted by premature beats.
c. Regular but interrupted by pauses.
d. Irregular. - ✔✔Irregular..
✔✔The most accurate way to determine heart rate would be to
Select one:
a. Count the number of P waves in a minute-long rhythm strip.
b. Count the number of QRS complexes in a minute-long rhythm strip.
c. Count the number of QRS complexes on a six-second strip and multiply by 10.
d. Count the number of P waves on a six-second strip and multiply by 10. - ✔✔Count
the number of QRS complexes in a minute-long rhythm strip..
✔✔If the patient's rhythm changes, you should FIRST
Select one:
a. Assess your patient for signs of decreased cardiac output.
b. Calculate the heart rate, rhythm, and intervals.
c. Change the lead to see if the rhythm is real or if it's artifact.
d. Look for P waves. - ✔✔Assess your patient for signs of decreased cardiac output..
✔✔The normal rhythm originating in the sinus node should have a heart rate
Select one:
a. Greater than 100.
