BACTERIAL INFECTION FUNDAMENTALS
Clinical clarity, from first signs to source control.
Syndromic reasoning stays primary while Bactif connects body systems, pathogens, diagnostics and sepsis escalation.
◉ Multidisciplinary care
Bacterial Infection Fundamentals
— body systems— published conditions— logic layers24–48h reassessment
Bench Calculators
Validated media, stock, dilution, specimen-grading and unit-conversion calculators with inputs, outputs, reference notes and limitations.
Educational decision support only. Not autonomous diagnosis and not a medical device. Confirm every identification, breakpoint and interpretation against your local standard operating procedure, your current antibiogram and the current official standard your laboratory follows (CLSI, EUCAST, WHO, ICMR, IDSA or NICE as applicable). BACTIF does not publish dosing and does not issue breakpoints of its own — stored records are curated references that carry their publisher, version, jurisdiction and review date. The syndromic patient assessment stays primary.
Loading approved microbiology records…
These are arithmetic helpers using published formulas. They do not replace your standard operating procedure, the manufacturer insert for the lot in hand, or a second check by a competent person. Every calculator lists its inputs, output unit, reference note and limitations.
Sputum specimen grading (Q-score)
Cells per low-power field (x100).
Enter both cell counts per low-power field.
Dilution (C1V1 = C2V2)
Same unit for both concentrations, same unit for both volumes.
Enter stock concentration, target concentration and final volume.
Media preparation mass
Use the grams per litre printed on the bottle for that lot.
Enter grams per litre and the volume required.
Colony count
From a plated, diluted sample.
Enter colony count, volume plated (mL) and dilution factor.
McFarland inoculum
Approximate density for typical bacteria.
Enter the McFarland value.
Unit conversion
SI and conventional conversion for laboratory tests is maintained in one place, on the calculators page, so both surfaces use the same approved factors and reference intervals.
Open unit conversion & test profiles