The Patient's Forearm Should Be Held Taut While Administering the Mantoux

Multiple Choice

The patient's forearm should be held taut while administering the Mantoux test to

A) prevent the needle from entering a blood vessel.
B) prevent an allergic reaction from occurring.
C) reduce the incidence of a false-positive test result.
D) permit easier insertion of the needle.
E) ensure all of the above.