ACSM Exam 030-444 Topic 6 Question 6 Discussion

Actual exam question for ACSM's 030-444 exam

Question #: 6
Topic #: 6

[All 030-444 Questions]

Examine the six extremity leads shown in the figure below. What is the appropriate mean QRS axis?

A-30.

B60.

C90.

D120.
(From Goldberger AL: Clinical Electrocardiography: A Simplified Approach, 6th ed. St Louis, Mosby, 1999, p 55.)

Show Suggested Answer

Suggested Answer: B

by Catarina at Mar 05, 2025, 09:25 AM

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Queen

2 months ago

I agree with Theron, -30 seems to be the most appropriate mean QRS axis.

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Tyra

2 months ago

Wow, I guess the electrical activity in the heart is just going in circles or something. 120 degrees? That's like a ninja move, not an ECG reading!

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Gail

2 months ago

I'm a little confused here. Is the question asking about the mean QRS axis or the mean axis of the entire ECG? That could make a difference in the answer.

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Aliza

29 days ago

B) 60.

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Joana

1 months ago

I think it's asking about the mean QRS axis specifically.

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Cristal

1 months ago

B) 60.

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Adelle

1 months ago

I think it's asking about the mean QRS axis specifically.

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Kelvin

1 months ago

A) -30.

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Wilbert

2 months ago

A) -30.

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Theron

2 months ago

Well, based on the extremity leads shown in the figure, I think -30 makes more sense.

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Brande

2 months ago

90 degrees? Really? That would be a vertical axis, and the leads don't look like that at all. I'm going with 60 degrees.

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Florencia

2 months ago

Why do you think it's -30? Can you explain your reasoning?

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Donte

2 months ago

Hmm, I'm not sure about this one. The leads seem to be showing a left-axis deviation, so I think the answer might be -30 degrees.

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Theron

2 months ago

I disagree, I believe it is -30.

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Ernestine

3 months ago

The mean QRS axis is clearly 60 degrees. This is the only option that aligns with the characteristic appearance of the extremity leads in the figure.

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Vincent

2 months ago

No, the extremity leads in the figure clearly point towards a mean QRS axis of 60 degrees.

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Alaine

2 months ago

What about option A) -30? Could that be a possibility?

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Lemuel

2 months ago

I agree, option B) 60 seems to be the correct choice.

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Shawnna

2 months ago

I think the mean QRS axis is 60 degrees.

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Florencia

3 months ago

I think the appropriate mean QRS axis is 90.

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