Table 2 Price of material needed for duplicate Kato-Katz thick smears and the FLOTAC dual technique, taking into account the asset cost, life time and days of use.
Material | Asset cost (US$) | Present material (n) | Lost material (n) | Examinations per material (n) | Estimated life expectancy (years) | Estimated days in use per year | Price per stool examination (US$) |
|---|---|---|---|---|---|---|---|
FLOTAC dual technique | |||||||
Wooden spatula | 0.02 | 0.02 | |||||
Falcon tubes (for stool preservation) | 0.04 | 0.04 | |||||
5% formaldehyde (1 l) | 1.25 | 0.01 | |||||
0.9% NaCl solution (1 l) | 0.20 | < 0.01 | |||||
FS4 (NaNO3, 1 l) | 12.11 | 0.13 | |||||
Pasteur-pipettes | 0.05 | 716 | 95 | 7 | 0.01 | ||
Falcon tubes (for preparation) | 0.04 | 10 | 0.01 | ||||
Filter for FLOTAC | 9.73 | 700 | 0 | 1,000 | 0.01 | ||
FLOTAC apparatus | 29.51 | 1,000 | 0.03 | ||||
FLOTAC apparatus (reading disk) | 2.21 | 100 | 0.02 | ||||
Balance (Kern EMB basic balance) | 172.57 | 10 | 50 | < 0.01 | |||
Centrifuge (Hettich Universal 320) | 5,865.44 | 10 | 50 | 0.12 | |||
Centrifuge (Hettich EBA 3 [second hand]) | 147.56 | 2 | 50 | 0.01 | |||
Duplicate Kato-Katz thick smears | |||||||
Cellophane paper | 0.01 | 0.01 | |||||
Wire mesh (3 cm2) | < 0.01 | < 0.01 | |||||
Microscope slide | 0.09 | 6,000 | 300 | 20 | < 0.01 | ||
Kato-Katz kit (template and plastic spatula) | 0.30 | 974 | 20 | 48.7 | 0.01 | ||
FLOTAC dual technique and duplicate Kato-Katz thick smears | |||||||
Gloves | 0.01 | < 0.01 | |||||
Container (120 ml) for stool collection | 0.15 | 3,170 | 249 | 12.73 | 0.01 | ||
Hand tally counter | 19.43 | 10 | 100 | < 0.01 | |||
Microscope (Olympus CX 21) | 938.83 | 10 | 100 | 0.01 |