While reviewing a brain biopsy in a patient with Alzheimer’s disease, the NP notes progressive neuronal loss without inflammatory cells. This looks like dysregulated apoptosis—cells are being eliminated inappropriately but not with the inflammation of necrosis. Which process is present?

47-year-old woman on long-term corticosteroids reports hip pain. MRI reveals femoral head necrosis. The NP reasons: This isn’t infection or autoimmunity—it’s ischemia cutting off blood supply

A 71-year-old woman is admitted with an ischemic stroke. On MRI, the NP reviews pathology showing swollen neurons with ruptured membranes and inflammation. The NP thinks: This isn’t tidy or regulated like apoptosis—this is uncontrolled necrosis from hypoxia. Which process is responsible?

The NP evaluates a tall, thin 19-year-old with hyperflexible joints and aortic root dilation. Genetic testing reveals a fibrillin mutation. The NP reflects: This isn’t a chromosome error like Down syndrome—it’s a single-gene

The NP assesses a 55-year-old septic patient who is tachypneic. ABG: pH 7.53 (7.35–7.45), PaCO₂ 25 (35–45), HCO₃⁻ 23 (22–26). The NP thinks: This alkalosis is from hyperventilation blowing off too much CO₂

The NP counsels a couple after amniocentesis confirms a fetus has three copies of chromosome 21. This isn’t a point mutation—it’s a whole chromosome error caused by nondisjunction. Which disorder is present?

A 14-year-old presents with polyuria, weight loss, and random glucose 320 mg/dL (normal fasting 70–99, 2-hour

The NP reviews pathology slides from a myocardial infarction and sees swollen cardiac cells with ruptured membranes and inflammation. This is uncontrolled

Two weeks after a heart transplant, a 49-year-old man presents with fever, arrhythmias, and rising cardiac enzymes. The NP thinks: This isn’t IgE or antibodies—it’s host T cells recognizing donor MHC and mounting a cytotoxic response. What is the underlying immune mechanism?

A 65-year-old man with COPD is admitted. ABG: pH 7.28 (normal 7.35–7.45), PaCO₂ 68 mmHg (35–45), HCO₃⁻ 27 mEq/L (22–26). The NP reasons: Low pH and high CO₂ means he’s retaining carbon dioxide from hypoventilation. Which is the primary mechanism?