A client is experiencing an acute myocardial infarction (MI) and I.V. morphine is prescribed. Morphine is given because it:*1 pointa. Eliminates pain, reduces cardiac workload, and increases myocardial contractilityb. Lowers resistance, reduces cardiac workload, and decreases myocardial oxygen demandc. Raises the blood pressure, lowers myocardial oxygen demand, and eliminates paind. Increases venous return, lowers resistance, and reduces cardiac workload.
Question
A client is experiencing an acute myocardial infarction (MI) and I.V. morphine is prescribed. Morphine is given because it:*1 pointa. Eliminates pain, reduces cardiac workload, and increases myocardial contractilityb. Lowers resistance, reduces cardiac workload, and decreases myocardial oxygen demandc. Raises the blood pressure, lowers myocardial oxygen demand, and eliminates paind. Increases venous return, lowers resistance, and reduces cardiac workload.
Solution
The correct answer is b. Lowers resistance, reduces cardiac workload, and decreases myocardial oxygen demand.
Morphine is given in the case of an acute myocardial infarction (MI) because it has several beneficial effects. It helps to lower resistance, which in turn reduces the workload of the heart. This is important because during an MI, the heart muscle is damaged and cannot work as efficiently. By reducing the workload of the heart, morphine helps to prevent further damage.
In addition, morphine helps to decrease the demand for oxygen in the heart muscle. During an MI, the blood supply to part of the heart muscle is blocked, which means that this part of the heart is not getting the oxygen it needs. By reducing the demand for oxygen, morphine helps to prevent further damage to the heart muscle.
Finally, morphine also provides pain relief, which can help to reduce anxiety and discomfort in the client. However, this is not one of the primary reasons why morphine is given in the case of an MI.
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