What’s in the Kit

• FIT test cassette
• Sample collection tube with buffer and integrated sampling stick
• Stool catcher / paper (if supplied)
• Instructions for use

What It’s For

Screens for occult (hidden) blood in a stool sample. Consider testing if you have:

• Change in bowel habit
• Unexplained abdominal pain or bloating
• Unintentional weight loss
• Family history of bowel cancer or polyps

A positive result means blood was detected and you should speak to your GP — further tests (often colonoscopy) may be needed.

Directions for Use

• Read the leaflet fully before starting.
• Collect a small stool sample using the catcher provided or clean, dry toilet tissue.
• Open the collection tube, use the stick to sample stool as directed, then return the stick to the tube and close firmly. Shake to mix.
• Add the specified drops to the cassette sample well.
• Wait about 5 minutes and read within the time window shown in the leaflet.
• Interpretation:
  • Two lines (Control + Test) = Positive (blood detected) → contact your GP.
  • One line at Control only = Negative (no blood detected above the threshold).
  • No Control line = Invalid → repeat with a new kit.

Unlike old guaiac cards, FIT typically needs no dietary restrictions. Follow the kit leaflet.

Precautions & Warnings

• For human in-vitro diagnostic use. Single-use only.
• Do not test during active menstruation or when you have visible rectal bleeding (e.g., haemorrhoids) — may cause false positives.
• Do not use after expiry or if packaging is damaged.
• Store at room temperature in a dry place; keep out of children’s reach.
• Red flags: persistent rectal bleeding, severe abdominal pain, iron-deficiency anaemia, or rapid weight loss → seek medical assessment regardless of result.

Performance & Helpful Info

• Stool FIT detects human haemoglobin (colon-origin blood).
• Typical reading time: ~5 minutes.
• Limit of detection around 50 ng/mL Hb (per product literature).
• CE-marked for home self-testing.

This is a screening aid. A positive result must be followed up by a clinician. A negative result does not rule out disease if symptoms persist.

FAQs

Do I need to change my diet beforehand?
No. FIT does not require dietary restrictions (unlike older guaiac tests).

What if I’m on my period?
Wait until bleeding has stopped to avoid contaminating the sample.

My test is positive — what next?
Contact your GP. They may arrange a lab FIT and/or colonoscopy to find the source of bleeding.