Protective ( Reverse)
Bacteria and infection are not a threat to the persons in direct contact with the patient, but to the patient. These patients need to be protected from the external enviroment. therefore, all persons entering the room must wear a gown, gloves and a mask. Always use clean equipment for obtaining the specimen.
Ex: burn patients, immunodeficiencies.
The modes of transmission are: fecal-oral;parenteral inoculation; and serum-oral. All persons collecting blood specimens MUST wear a gown, gloves and be extrewmeley careful in collection technique.
EX: Hepatitis B, AIDS, histoplasmosis, Creutzfeldt- Jacob disease