Answer: The correct answer to the question is option A
ELECTROCARDIOGRAM
Explanation: Right sided heart failure is otherwise known as pulmonary heart disease or cor pulmonale.
In a healthy heart,deoxygenated blood enters the right atrium through the superior and inferior vena cava,the right atrium contracts opening the tricuspid valve and making way for the blood to empty into the right ventricle.the right ventricle further contracts and the pulmonary valve opens,the deoxygenated blood from the right ventricle goes into the pulmonary trunk and into the right and left pulmonary artery,the right and left pulmonary artery empties the deoxygenated blood into the right and left lungs for gaseous exchange.(oxygenation)
When the right side of the heart is diseased,there will be a failure in carrying out the above stated functions.
Right sided heart failure is simply defined as the inability of the right side of the heart to take-up or pump deoxygenated blood into the lungs for oxygenation.
The sign and symptoms if right sided heart failure are mainly lethergy, dyspnea, fatigue and oedema.
Electrocardiogram is one of the diagnostic procedure for right sided heart failure,it will reveal an impairment in the heart rate and rythym and also an impairment in pulmonary artery pressure.