Should all colonies on urine culture (from a patient ,not a synthetic sample) plate be counted...
Should all colonies on urine culture (from a patient ,not a synthetic sample) plate be counted ? why or why not ( are all of the colonies be counted from pathogen)
Homework Answers
A bacterial culture is generally performed to detect the presence/absence of a particular type of pathogen in the sample. Here, it must be carefully noted that the urine sample might contain some non-pathogenic bacteria along with the pathogenic ones. Thus, the number of colonies appearing in the plate must be carefully counted. While one expects pathogenic colonies, even the low count is important to be analysed and taken into account since a low colony count will correspond to low-grade infection and an appropriate treatment modality might be followed.
Thus, all colonies on the urine culure plate must be counted and accounted for any infection in the patient.
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Should all colonies on urine culture (from a patient ,not a
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your lab manual for instructions, Sample plated Number of colonies on plate TMTC 430 4th plate 5th plate 6th plate 75 Which plate has the countable number of colonies? What is the dilution factor that produced that plate? • What is the correction factor for the volume? How many cfu/ml are in the culture, based on your calculations? 4. Suppose you plated 1 ml of a 10-7 dilution (tenfold dilutions) of a bacterial broth culture
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Data Table 1. Food Safety Culture Results. Plate Section Number of Total Colonies Types of Microbes Milk Fresh Milk Opened 1 Lettuce Washed Lettuce 70 Unwashed Data Table 2. Photograph of Developed Plates. Photograph Questions: Why is food safety important? 1. 19
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