Category ratings defined. Test instruments are rated on their ability to withstand a voltage spike, which is applied through a specified level of resistance (Table). The ratings are broken down by categories â CAT I, II, III, and IV.
Burning Mouth and Tongue. Burning tongue is an odd sensation in the tongue and mouth that most commonly affects women who are entering or going through menopause. Though researchers are not sure what causes it, several suspects include irritating dentures, nerve damage, or hormonal imbalances.
When consumed, these plants cause an intense burning sensation of the mouth, throat, lips and tongue; excessive drooling, choking, gagging and potentially serious swelling of the throat that could cause difficulty or the inability to swallow (dysphagia).