The resistance stage in the general adaptation syndrome (stress response) is dominated by.
cortisol
aldosterone
epinephrine
angiotensin
norepinephrine
The Correct Answer is A
A. Cortisol: Cortisol (a glucocorticoid from the adrenal cortex) dominates the resistance stage of the general adaptation syndrome by sustaining energy supplies (gluconeogenesis), mobilizing fats/proteins, and modulating immune/inflammatory responses during prolonged stress.
B. Aldosterone: Aldosterone (a mineralocorticoid) contributes to long-term fluid and electrolyte adjustments by promoting Na⁺ and water retention, but the principal hormone of the resistance stage is cortisol.
C. Epinephrine: Epinephrine (from the adrenal medulla) mediates the alarm or immediate fight-or-flight response (rapid, short-term effects), not the sustained resistance stage.
D. Angiotensin: Angiotensin II is part of the RAAS and raises blood pressure/stimulates aldosterone, but it is not the dominant hormone of the resistance stage.
E. Norepinephrine: Norepinephrine is a sympathetic neurotransmitter/mediator of the immediate alarm response; it is not the main hormone in the prolonged resistance phase.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is E
Explanation
A. Heart: The heart is a central component of the circulatory system, but not the only one.
B. Blood vessels: Blood vessels (arteries, veins, capillaries) are essential, but alone they don’t make up the whole system.
C. Blood: Blood is a major component (transport medium), but not the whole system by itself.
D. Heart and blood vessels: These two form the pump and conduits, but blood (the transported fluid) is also required.
E. Heart, blood vessels, and blood: The circulatory system consists of the heart (pump), blood vessels (conduits), and blood (transport medium).
Correct Answer is A
Explanation
True: Transfusion incompatibility arises when plasma antibodies in the recipient (or donor plasma) recognize foreign RBC antigens and cause agglutination/hemolysis.
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