What is Cushing's Triad?
A condition characterized by hyperthermia, increased thirst, and polyuria
A condition characterized by confusion, blurred vision, and dizziness
A neurologic emergency characterized by bradycardia, decreased respirations, and hypertensic
A condition characterized by tachycardia, shallow respirations, and hypotension
The Correct Answer is C
A. Hyperthermia, increased thirst, and polyuria are not related to Cushing's Triad; these symptoms suggest other conditions such as diabetes insipidus.
B. Confusion, blurred vision, and dizziness are nonspecific symptoms and do not define Cushing’s Triad.
C. Cushing's Triad is a classic neurologic emergency that indicates increased intracranial pressure. It is characterized by the triad of bradycardia (slow heart rate), decreased or irregular respirations, and hypertension (high blood pressure). This response is the body’s attempt to maintain cerebral perfusion in the face of rising intracranial pressure.
D. Tachycardia, shallow respirations, and hypotension are not consistent with Cushing’s Triad.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Jugular distention is more commonly associated with right-sided heart failure.
B. Dependent edema is typically seen in right-sided heart failure due to systemic venous congestion.
C. Nocturnal polyuria can occur in heart failure but is less specific.
D. Frothy sputum is a classic sign of left-sided heart failure due to pulmonary congestion and edema caused by impaired left ventricular function.
Correct Answer is A
Explanation
A. According to the Monroe-Kellie doctrine, the skull is a closed compartment, and the total volume of brain tissue, blood, and cerebrospinal fluid (CSF) must remain constant. If one component increases, the others must decrease to maintain normal intracranial pressure (ICP).
B. Even small changes in volume can affect ICP and brain function if compensation mechanisms are exceeded.
C. The skull is rigid and does not expand, so any volume increase without compensation leads to increased ICP.
D. The components are interrelated and changes in one directly affect the others due to the closed nature of the intracranial space.
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