The nurse is observing a client receiving antiplatelet therapy for adverse reactions. Antiplatelet drugs most commonly produce which hypersensitivity reaction?

Correct Answer: C

Rationale: Antiplatelet drugs most commonly produce bronchospasm as a hypersensitivity reaction. This adverse reaction occurs due to the release of bronchoconstrictive mediators, leading to narrowing of the airways and potentially causing respiratory distress. It is important for nurses to closely monitor clients receiving antiplatelet therapy for signs of bronchospasm, such as wheezing, shortness of breath, and chest tightness, and to intervene promptly to prevent further complications. Difficulty hearing, confusion, and agranulocytosis are not typically associated with antiplatelet therapy.

Correct Answer: B

Rationale: Communicating hydrocephalus is a type of hydrocephalus where there is no obstruction to the passage of cerebrospinal fluid (CSF), but rather a malfunction or malformation of the arachnoid villi, which are responsible for the reabsorption of CSF. In communicating hydrocephalus, the flow of CSF within the ventricular system is disrupted, leading to an accumulation of fluid and resulting in increased intracranial pressure.

Correct Answer: D

Rationale: Huntington's disease is a progressive neurological disorder that affects movement, cognition, and behavior. The three main clinical manifestations of Huntington's disease are abnormal involuntary movements (chorea), intellectual decline, and emotional disturbances. Chorea is characterized by involuntary jerky movements that are often random and unpredictable. Intellectual decline includes difficulties with cognitive functions such as planning, organizing, and remembering. Emotional disturbances may manifest as irritability, depression, anxiety, or mood swings. Overall, individuals with Huntington's disease experience a wide range of symptoms that impact both their physical and mental well-being.

Correct Answer: C

Rationale: Addison's disease, also known as adrenocortical insufficiency, is characterized by a deficiency in adrenal cortex hormones, particularly glucocorticoids and mineralocorticoids. One of the characteristic findings in Addison's disease is hyperkalemia, which is an elevated serum potassium level. This is due to the lack of aldosterone production by the adrenal glands, leading to decreased potassium excretion by the kidneys. Therefore, a serum potassium level of 5.8 mEq/L would best support a diagnosis of Addison's disease among the given laboratory test results.

Correct Answer: B

Rationale: These skills are typically developed by age 3.