10 lead?

[donedeal]

The ECG machine at our hospital only has 10 leads? Is this normal for hospitals? What other information would the other 2 leads produce?

[akflightmedic]

You are confused.

Yes there are 10 wires, but it is still a twelve lead....lead meaning the different views of the heart

[donedeal]

ahhhh.....now i see....thank you.

[Thunderchild145]

Yup. The 4 limb electrodes provide 6 leads (I, II, III, aVR, aVL, aVF) and each of the chest electrodes provides 1 lead (V1-6)

[PRPGfirerescuetech]

Yup. The 4 limb electrodes provide 6 leads (I, II, III, aVR, aVL, aVF) and each of the chest electrodes provides 1 lead (V1-6)

+5 points for anyone who can tell me why that is.

[AZCEP]

Leads I, II, and III are bipolar limb leads. They use a positive and negative pole to view the activity.

Leads aVR, aVL, and aVF are unipolar limb leads. They use a single positive pole to view activity.

The ECG calculates the location of little to no electrical activity and uses this site as the negative electrode.

Electrical activity(EA) in lead I + EA lead III = EA lead II, or (lead I + III) - II = 0

The precordial leads use the same central terminal(CT) for their negative electrode.

If you want more information than this, look for Einthoven's law.

[PRPGfirerescuetech]

Leads I, II, and III are bipolar limb leads. They use a positive and negative pole to view the activity.

Leads aVR, aVL, and aVF are unipolar limb leads. They use a single positive pole to view activity.

The ECG calculates the location of little to no electrical activity and uses this site as the negative electrode.

Electrical activity(EA) in lead I + EA lead III = EA lead II, or (lead I + III) - II = 0

The precordial leads use the same central terminal(CT) for their negative electrode.

If you want more information than this, look for Einthoven's law.

WINNER!