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Given below is the ECG of a normal human. Which one of its components in human is correctly interpreted below

  • Option 1)

    Complex QRS- One complete Pulse

  • Option 2)

    Peak T - Initiation of total cardiac contraction

  • Option 3)

    Peak P and Peak R together -Systolic and diastolic blood pressures

  • Option 4)

    Peak P - Initiation of left atrial contraction only

 

Answers (1)

best_answer

 

Steps to obtain a standard ECG -

Each peak in the ECG is identified with a letter from P to T that corresponds to a specific electrical activity of the heart.

- wherein

Steps to obtain a standard ECG

 

 

The P-wave -

The P-wave represents the electrical excitation (or depolarisation) of the atria,

- wherein

which leads to the contraction of both the atria.

 

 

 

The QRS Complex -

The QRS complex represents the depolarisation of the ventricles, which initiates the ventricular contraction.

- wherein

The contraction starts shortly after Q and marks the beginning of the systole.

 

 

The T-wave -

The T-wave represents the return of the ventricles from excited to normal state (repolarisation).

- wherein

The end of the T-wave marks the end of systole.

 

 

 


Option 1)

Complex QRS- One complete Pulse

Incorrect

Option 2)

Peak T - Initiation of total cardiac contraction

Incorrect

Option 3)

Peak P and Peak R together -Systolic and diastolic blood pressures

Correct

Option 4)

Peak P - Initiation of left atrial contraction only

Incorrect

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prateek

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