A nurse working in radiology administers iodine to a patient who is having a computed tomography (CT) scan.
The nurse working on the oncology unit administers chemotherapy to a patient who has cancer.
At the public health department, a nurse administers a measles mumps rubella vaccine to a 14-month-old child as a routine immunization.
Which branch of pharmacology best describes the actions of the three nurses?

Choice A rationale

Coagulation studies assess the blood's ability to clot and are not directly related to the monitoring of phenytoin therapy. These tests are more relevant for patients with bleeding disorders or those on anticoagulant therapy.

Choice B rationale

Serum electrolytes, including levels of sodium, potassium, and calcium, are important for overall health but are not specifically indicative of phenytoin levels. Phenytoin may affect calcium metabolism, but it is not the primary focus for routine monitoring.

Choice C rationale

Renal function tests are crucial for assessing kidney function but do not directly monitor phenytoin therapy. Phenytoin is primarily metabolized in the liver, making liver function tests more relevant.

Choice D rationale

Blood glucose levels should be monitored in patients taking phenytoin as the drug can cause alterations in blood glucose levels. Both hypoglycemia and hyperglycemia have been reported, so it is important to check glucose levels to ensure they remain within a normal range.

Choice A rationale

Chronic Obstructive Pulmonary Disease (COPD) is a progressive disease characterized by obstructed airflow from the lungs. While related to respiratory health, it is distinct from tuberculosis.

Choice B rationale

Bronchiectasis is a condition involving the permanent enlargement of parts of the airways of the lung, often caused by infection or other lung conditions but is different from tuberculosis.

Choice C rationale

Emphysema is a chronic lung condition where the alveoli (air sacs) are damaged, leading to breathing difficulties. This condition is usually associated with smoking and is distinct from tuberculosis.

Choice D rationale

Consumption is an old term for tuberculosis, reflecting the wasting away (consuming) nature of the disease due to the progressive weight loss and weakness it causes.