A patient suspected of having tuberculosis needs a sputum culture and sensitivity. The nurse gives instructions to the patient regarding proper collection of sputum. The nurse needs to provide additional instructions if the patient says:

"I must rinse my mouth with mouthwash before collecting sputum"


•Rinsing the mouth with mouthwash may destroy microbes and alter the culture.

•The other answer choices describe proper sputum collection.

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