FREE AND STUDY GAMES ABOUT 22 LEADS EXAM

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FREE AND STUDY GAMES ABOUT '22 LEADS EXAM

QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -45 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation

Question 1: aVR is placed where and what type of deflection does it have?

Answer:

• Arm ; negative deflection

Question 2: precordial leads

Answer:

unipolar V1-V6 (where you pick up the signal of the heart)

Question 3: lead l includes?

Answer:

(+) R. Arm <---> L. Arm (-)

Question 4: standard limb lead

Answer:

"bipolar lead" AKA bipolar bc they are composed of 2 electrodes; a neg. and pos. one; ECG records the difference in electrical potential btwn them

Question 5: In a 12-lead, Color ____ is placed on ____

Answer:

[Lead] BLACK ; Left arm

Question 6: lead lll includes?

Answer:

(-) L. Arm <--> L. Leg (+)

Question 7: if an aVR has a positive deflection, what should be done?

Answer:

make sure that the leads are properly placed Question 8: QRS complex:

Answer:

represents the complete ventricular depolarization last (0.08-0.12 secs or 2-3 small sq) anything +/- means "abnormal"

Question 9: which leads produces a positive deflection?

Answer:

lead l, ll, lll & aVL, aVF

Question 10: electrodes are?

Answer:

are placed on the pts skins in specific locations that control electrical activity to the ECG

• for single use
• check for expiration date

Question 11: how many leads in a 12 waveform paper?

Answer:

10 leads

Question 12: In a 12-lead, Color ____ is placed on ____

Answer:

[Lead] GREEN ; Right leg

Question 13: lead ll includes?

Answer:

(+) R. Arm <--> L. Leg (-)

Question 14: In a 12-lead, Color ____ is placed on ____

Answer:

[Lead] WHITE; Right arm Question 15: 12-lead EKG consist of:

Answer:

• limb leads (3 limb electrodes & 1 grounding electrode)
• chest leads (V1-V6)

= 10 leads that create 12 waveforms Question 16: standard & augmented leads and waveforms NOTE:

Answer:

• standard leads l, ll, lll produce POSITIVE deflections on the graph
• augmented lead aVR produces a negative deflection
• augmented lead aVL & aVF produces a POSITIVE deflection

Question 17: which leads produces a negative deflection?

Answer:

aVR

Question 18: In a 12-lead, Color ____ is placed on ____

Answer:

[V5] ORANGE; Aligned with V4 at anterior axillary line

Question 19: In a 12-lead, Color ____ is placed on ____

Answer:

[V1] RED ; Right sternal border, 4th intercostal space

Question 20: unipolar leads

Answer:

from the heart to the ____:

aVR - R. Arm

aVL - L. Arm aVF - L. Foot

Question 21: In a 12-lead, Color ____ is placed on ____

Answer:

[V6] PURPLE; In line with V4 and V5 at mid-axillary line

Question 22: if electrodes produce NO waveforms, what could be wrong?

Answer:

the electrodes may be misplaced

Question 23: In a 12-lead, Color ____ is placed on ____

Answer:

[V]3 GREEN; midway between V2-V4 Question 24: T/F: A multichannel electrocardiograph, such as 3-channel or 6-channel, records multiple leads at once in about 10 seconds

Answer:

T ; Unlike a single-channel ECG, the 3- and 6-channel ECG record multiple leads at once producing a 12-lead ECG in about 10 secs

Question 25: Einthoven's triangle

Answer:

triangle formed from the R. A --> L. A --> L.L Question 26: chest leads and waveforms NOTE:

Answer:

• chest leads/precordial leads V1-V6 provide a view of the heart from different angles

Question 27: what is the grounding lead used for?

Answer:

used to stabilize the ECG but takes NO part in lead formation