Lab CE General

In the micro lab, which specimen is considered level 1, requiring immediate attention? a. Catheter tip for quantitation b. Swab in transport medium c. Amniotic fluid d. Unpreserved feces

Amniotic fluid Unpreserved feces or sputum = level 2 Catheter tip = level 3, to be stored if processing is delayed Swabs in transport mediums = level 4

Of the following organisms, which is the least pathogenic to humans? a. Corynebacterium ulcerans b. Bacillus anthracis c. Listeria monocytogenes d. Nocardia brasiliensis

Corynebacterium ulcerans Corynebacterium ulcerans is considered a zoonosis and occurs with close animal contact. Bacillus anthracis (anthrax) & Listeria monocytogenes (neonatal infections) are obvious pathogenic organisms. Nocardia brasiliensis causes subcutaneous infections

The condition most likely to predispose a person to septicemia by viridans streptococci is: a. hypertrophy of the prostate gland b. poor oral hygiene c. chronic obstructive pulmonary disease d. indwelling catheter

poor oral hygiene