Processing Of Specimens For Shipment Table

It is frequently necessary to ship specimens to reference laboratories for analysis or confirmation. Acceptable shipping containers and procedures for packing specimens are described below Ascitic fluid for bacteria and fungal culture. Place aseptically in sterile containers without preservative. Where tuberculosis is suspected, see directions for processing specimens from suspected tuberculous patients. Pure cultures of bacteria for identification, confirmation, and sensitivity tests. Grow in...

Exercises Lesson

The following exercises are to be answered by marking the lettered response that BEST answers the question or completes the incomplete statement. 1. Mutualism is a microbial association in which a. The host and microorganism both benefit. b. The microorganism derives significant benefit at the expense of the host. c. Neither the microorganism nor the host derives any benefit, or harms the other. d. The host derives significant benefit at the expense of the microorganism. 2....

Collecting and processing urine specimens

Urine Processing

Urine cultures (figure 1-8) are of value in diagnosing primary infections of the anterior urinary tract (urethritis), bladder (cystitis), and kidneys (nephritis). Urine cultures are also important in diagnosing certain systemic infections, for the etiological agents are often excreted via the urinary tract. Staphylococcus species, a Streptococcus species, and Neisseria gonorrhea are among the primary etiological agents of urethritis while Escherichia, Proteus, and occasionally...

Virulent Strains Of Mycobacteria

See Table 4-6 for characteristics of the acid-fast bacilli. Cording tight serpentine cords observed microscopically exhibited by these bacteria when grown upon complex, organic media and upon 7H10 medium is indicative of virulent tubercle bacilli. Cording tends to be characteristic of virulent strains. Virulent strains are capable of binding the dye of neutral red salts in an alkaline aqueous media. Saprophytic and virulent types are not capable of binding the dye in such a solution. Acid-fast...