What is the concentration of McFarland standard used in antibiotic sensitivity tests and what size of blood sample should the adult patient give for routine laboratory diagnosis?
Understand the Problem
The question asks about the concentration of the McFarland standard used in antibiotic sensitivity tests and what size of a blood sample should be taken from an adult patient for routine laboratory diagnosis.
Answer
0.5 McFarland; Blood sample: 5-10 mL.
The concentration of McFarland standard used in antibiotic sensitivity tests is 0.5 McFarland. The typical size of a blood sample for routine laboratory diagnosis is about 5-10 mL.
Answer for screen readers
The concentration of McFarland standard used in antibiotic sensitivity tests is 0.5 McFarland. The typical size of a blood sample for routine laboratory diagnosis is about 5-10 mL.
More Information
The McFarland standard helps to standardize bacterial suspensions for antibiotic susceptibility testing. In routine laboratory diagnostics, the blood sample typically falls within the range to ensure adequate testing while maintaining patient comfort.
Sources
- McFarland standards - Wikipedia - en.wikipedia.org
- Laboratory Assessment of Antibiotic Resistance Testing Capacity - cdc.gov
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