A formed stool specimen from an asymptomatic patient is submitted for C. difficile NAAT. What is the best laboratory action under appropriate testing stewardship?
1Test every formed stool specimen to detect asymptomatic C. difficile colonization
2Culture the formed stool specimen aerobically for enteric pathogens only
3Report C. difficile toxin disease without performing any laboratory testing
4Reject or defer testing per policy since NAAT is indicated for diarrheal illness✓ 정답
해설
Molecular tests can detect colonization as well as disease. Testing should be limited to patients with clinically compatible diarrhea and appropriate specimens under the laboratory's policy.