Correct Answer: C

Rationale: The primary reason for administering morphine to a patient with a myocardial infarction (MI) is to reduce cardiac workload. Morphine helps in reducing preload and afterload, which ultimately improves oxygenation to the heart muscle. By decreasing the workload on the heart, morphine can alleviate symptoms and decrease the strain on the heart muscle during an MI.

Correct Answer: B

Rationale: Increasing sharp pain related to compartment syndrome necessitates immediate intervention as it may lead to permanent damage to muscles and nerves. Compartment syndrome is a serious condition that requires urgent medical attention to prevent further complications such as tissue necrosis and nerve injury.

Correct Answer: B

Rationale: Myasthenia gravis is a neuromuscular disorder characterized by muscle weakness and fatigue, especially in the voluntary muscles. Patients with myasthenia gravis commonly experience weakness in muscles that control eye movements, facial expressions, chewing, swallowing, and speaking. This weakness typically worsens with activity and improves with rest. Joint pain, loss of sensation, and severe headaches are not typical symptoms of myasthenia gravis.

Correct Answer: C

Rationale: When a patient with cervical cancer is receiving external-beam radiation, the radiation to the abdomen can affect organs in its path, such as the bowel, leading to complications like frequent diarrhea. Cleaning the perianal area carefully after each bowel movement is crucial to decrease the risk of skin breakdown and infection. Testing stools for blood is not necessary since inflammation associated with radiation may lead to occult blood in stools. Maintaining a low-residue diet is actually recommended to prevent bowel irritation. Radiation to the abdomen does not cause stomatitis, so inspecting the mouth and throat for thrush is not directly related to the effects of external-beam radiation in this context.

Correct Answer: B

Rationale: Nausea and vomiting are common signs of digoxin toxicity, which can lead to serious complications like dysrhythmias. Prompt intervention is crucial to prevent further harm to the client.