Which three symptoms are characteristic of Cushing triad associated with increased ICP?
Bradycardia, hypertension, and widening pulse pressure
Widening pulse pressure, headache, and seizure
Hypertension, tachycardia, and headache
Hypotension, tachycardia, and narrowing pulse pressure
The Correct Answer is A
A. Bradycardia, hypertension, and widening pulse pressure
This combination of symptoms is characteristic of Cushing's triad. Bradycardia (slow heart rate), hypertension (elevated blood pressure), and widening pulse pressure (difference between systolic and diastolic blood pressure) are indicative of increased ICP, specifically resulting in the compression of brain structures that regulate vital functions.
B. Widening pulse pressure, headache, and seizure
While headache and seizure may occur in patients with increased ICP, widening pulse pressure alone is not sufficient to meet the criteria of Cushing's triad. The presence of bradycardia and hypertension, along with widening pulse pressure, is more indicative of Cushing's triad.
C. Hypertension, tachycardia, and headache
Hypertension and headache may occur in patients with increased ICP, but the absence of bradycardia and widening pulse pressure makes this option less characteristic of Cushing's triad.
D. Hypotension, tachycardia, and narrowing pulse pressure
Hypotension (low blood pressure) and narrowing pulse pressure are not typically associated with Cushing's triad. Tachycardia (rapid heart rate) may occur in response to increased ICP, but it is usually accompanied by bradycardia rather than hypotension.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Nystagmus:
Nystagmus is an involuntary, rhythmic movement of the eyes, which can be rapid and jerky. It is a common neurological manifestation of phenytoin toxicity. Patients experiencing phenytoin toxicity may exhibit horizontal or vertical nystagmus, which can be detected upon physical examination.
B. Strabismus:
Strabismus, also known as crossed eyes or squint, refers to a misalignment of the eyes. While strabismus can have various causes, it is not typically associated with phenytoin toxicity. Therefore, it is less likely to indicate phenytoin toxicity compared to nystagmus.
C. Blurry vision:
Blurry vision, or visual disturbances, can occur in patients experiencing phenytoin toxicity. However, it is a non-specific symptom and can be observed in various other conditions as well. Patients with phenytoin toxicity may experience blurry vision, double vision (diplopia), or other visual disturbances due to the effects of the medication on the central nervous system.
D. Amblyopia:
Amblyopia, also known as lazy eye, is a condition characterized by reduced vision in one or both eyes. It is typically associated with visual development during childhood and is not directly related to phenytoin toxicity. Therefore, it is less likely to indicate phenytoin toxicity compared to nystagmus or other neurological manifestations.
Correct Answer is C
Explanation
A. Aura phase:
The aura phase occurs before the seizure and is characterized by subjective sensations or experiences that some individuals may have. It serves as a warning sign that a seizure is about to occur. This phase precedes the seizure itself and is not applicable to the period immediately afterward.
B. Presence of automatisms:
Automatisms refer to repetitive, involuntary movements or actions that some individuals may exhibit during certain types of seizures, such as complex partial seizures. They are not typically observed during the postictal phase of a generalized tonic-clonic seizure.
C. Postictal phase:
The postictal phase, also known as the postictal state, refers to the period following a seizure during which the individual may experience confusion, drowsiness, or other altered states of consciousness. This phase typically lasts for minutes to hours and is characterized by gradual recovery of normal function.
D. Presence of absence seizures:
Absence seizures are characterized by brief episodes of altered consciousness, often manifesting as staring spells or momentary loss of awareness. They are distinct from generalized tonic-clonic seizures and do not involve the same postictal phase characterized by drowsiness and altered arousal.
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