The Mouth Care Measure That Should Be Used with Caution

The mouth care measure that should be used with caution by the nurse when a client has a nasogastric tube is:

A) Regularly brushing teeth and tongue with soft brush
B) Sucking on ice chips to relieve dryness
C) Occasionally rinsing mouth with a non-astringent substance and massaging gums
D) Application of lemon juice and glycerine swabs to the lips