_____ is an abnormal narrowing of the larynx (voice box). A: laryngospasm B: laryngectomy C: laryngostenosis D: laryngoplasty

What is the most dangerous clinical manifestations of vitamin D deficiency tetany? () A: laryngospasm B: peroneal reflex C: convulsion D: Tetany E: pillow baldness

When treating the tenany of vitamin D deficiency,which needs to be<br/>done first?() A: Controlling seizure or laryngospasm B: Calcium supplementation C: Vitamin D supplementation D: Anti-infection E: Anti-virus