What is decerebrate posturing?
Extension and rigidity of the arms and legs, indicating an insult to the midbrain or pons
tonic-clonic seizure indicating an injury to the frontal cortex
Involuntary twisting and repetitive movements
Uncontrolled jerking movements of the limbs and finger rolling
The Correct Answer is A
A. Decerebrate posturing is characterized by extension and rigidity of the arms and legs, typically indicating damage to the midbrain or pons. It reflects severe brain injury.
B. Tonic-clonic seizures involve rhythmic muscle contractions but are not posturing.
C. Involuntary twisting and repetitive movements describe dystonia or chorea, not decerebrate posturing.
D. Uncontrolled jerking movements describe myoclonus or seizures, not decerebrate posturing.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Natriuretic peptides promote vasodilation and diuresis but do not directly increase heart rate.
B. Activation of the sympathetic nervous system increases heart rate and contractility to maintain cardiac output in heart failure.
C. Cardiac fibrosis is a pathological change, not a compensatory mechanism causing increased heart rate.
D. The renin-angiotensin-aldosterone system is usually activated, not inhibited, in heart failure.
Correct Answer is D
Explanation
A. Numerical Rating Scale is used to assess pain intensity, not consciousness.
B. Wong-Baker FACES is also a pain assessment tool, mainly for children.
C. Visual Analog Scale measures subjective pain levels.
D. Glasgow Coma Scale (GCS) is the standard tool used to assess a patient’s level of consciousness, evaluating eye opening, verbal response, and motor response.
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