A client is admitted with suspected pulmonary tuberculosis (TB). Which type of isolation precaution is required?

TUBERCULOSIS — AIRBORNE PRECAUTIONS: TB spreads via tiny airborne droplet nuclei that remain suspended in air and travel on air currents. REQUIREMENTS: AIIR (Airborne Infection Isolation Room) — negative pressure relative to the hallway (air flows INTO the room, not out); minimum 6-12 air exchanges per hour; air exhausted outside or through HEPA filtration; N95 RESPIRATOR (fit-tested) or PAPR for anyone entering — a regular surgical mask is NOT sufficient for airborne precautions; keep the door closed; if the client must leave the room, they wear a surgical mask (to contain their droplets); OTHER AIRBORNE DISEASES (mnemonic 'My Chicken Hez TB'): Measles, Chickenpox (varicella), Herpes zoster (disseminated), TB; CONTRAST: Droplet (flu, pertussis, meningitis) = surgical mask, larger droplets that don't travel far; Contact (C. diff, MRSA) = gown and gloves; LPN role: implement airborne precautions, wear N95, ensure negative-pressure room, educate visitors.