During venipuncture the bevel of the needle should always face down.

One criterion for the use of a dry-powder inhaler is the patient's ability to:

a. coordinate inspiration with actuation. b. hold the dry-powder inhaler 4 cm from the mouth. c. empty the powder into the dry-powder inhaler. d. inspire at flows greater than 40 L/min.

The borders of buccal and lingual caries are usually ill-defined radiographically

Indicate whether the statement is true or false