A patient has experienced a myocardial infarction. On which primary blood vessel will the nurse focus care to reduce ischemia?
Superior vena cava
Carotid artery
Pulmonary artery
Coronary artery
The Correct Answer is D
A. The superior vena cava is responsible for returning deoxygenated blood from the upper body to the heart and is not directly involved in myocardial ischemia.
B. The carotid artery supplies blood to the brain and is not the primary focus in the context of myocardial infarction.
C. The pulmonary artery carries deoxygenated blood from the heart to the lungs and is not involved in coronary circulation.
D. The coronary arteries supply blood to the heart muscle itself. Ischemia during a myocardial infarction occurs when these arteries are blocked or narrowed, leading to a lack of blood flow and oxygen to the heart tissue.
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Correct Answer is D
Explanation
A. Grief evaluation refers to assessing the grief process rather than actively engaging in supportive dialogue, which is not the primary focus of the nurse's action.
B. Pain-management techniques would not apply directly to this context, as the discussion centers on emotional support rather than physical pain.
C. Palliative care encompasses a broader approach to managing patients with serious illnesses but does not specifically address the emotional support provided in this situation.
D. The nurse's action of discussing the child's life and death helps the parents express their grief and memories, thereby facilitating normal mourning, making this the most appropriate principle demonstrated.
Correct Answer is C
Explanation
A. While monitoring cardiac output can provide insights into heart function, it does not directly determine the presence of dysrhythmias.
B. Peripheral extremity circulation is influenced by cardiac output but is not the primary focus of monitoring it.
C. Cardiac output is essential for determining the heart's ability to meet the body's oxygenation requirements; low cardiac output can lead to inadequate oxygen delivery.
D. Ventilation status refers to the respiratory function and is not directly assessed through cardiac output measurements.