Final answer:
Neuromuscular blockade reversal is evidenced by improved muscle strength and the return of respiratory effort, not necessarily by increased heart rate or restoration of sweating.
Step-by-step explanation:
The signs indicating the reversal of a neuromuscular blockade include restored muscle function and a return of respiratory effort. An increase in heart rate is associated with hyperthermia, which is unrelated to the direct reversal of neuromuscular blockade. Restoration of sweating is not a primary indicator of neuromuscular blockade reversal. Instead, monitoring improved muscle strength, especially by checking ventilatory function, is one of the key signs that a blockade is diminishing. Returning respiratory effort, such as spontaneous breathing movements, indicates that the effects of the blocking agent are wearing off and normal muscle control is being regained.