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 |