Yes it is reliable #95% in my experience

Yes, very reliable. Used it lots of time. Also don't forget, very convenient for patient/family doctor to know result sooner rather than later.

Yes it is reliable.

But,  to avoid false negative results, you should take mucosal biopsies from antrum, body and fundus of the stomach.

In my opinion  all of gastric biopsies taken for rapid urease test must be examined histopathologically  to confirm the presence of H.pylori.

Rapid urease test  (RUT)in gastric endoscopic biopsies has inferior sensitivity and specificity than  the gold standard test: mucosal biopsy.

In addition it has some other limitations. Nobody needs an urgent report of H. pylori infection in order to reduce morbidity in an infected patient.

Since RUT is an invasive test operator is in the position to sample the gastric mucosa for pathological examination. Result will be available in 48 to 72 hs.

Sensitivity and specificity of RUT is quite similar than other non invasive test such as C14 breath test and fecal antigen determination.

In practice:  in a patient suspect of having H pylori infection if he does not need an upper digestive endoscopy C14 breath test and fecal antigen determination must be done.

If endoscopy is performed by this or a different indication mucosal sampling for biopsy is a good practice to perform.

Yes. It is very reliable test when you take biopsy at the site of H.pylori infection. Diffuse redness is the one of the best endoscopic sign of H.pylori gastritis.

Quite reliable especially in presence  of duodenal ulcer. However it need invasive endoscopy

I think it can only be an additional test to the pathology test.

The distribution of H.pylori microorganisms in gastric mucosa  is patchy,so suitable site for biopsy is important for reporting positive or negative RUT.

Generally reliable, provided that no PPIs have been taken for the preceding 2 weeks.  As stated above, sensitivity is increased by sampling both antrum and body.  Histopath is the gold standard, but, like gold, it is very expensive.

For screening may be enough. Nevertheless, it is unreasonable in patients suspected of having H pylori not to sample the gastric mucosa for histopath,  even though this test has an additional cost.  

I agree completely.

Besides, histopathology is necessary to detect severe complications of Hp necessitating taking special action, especially if mucosa looks abnormal or if the patient is elderly.

RUT is affected by many variables such as bacterial load, patchy distribution of H. pylori in the stomach, the time necessary for seeing the positivity. However, when positive, it can address eradicating treatment.

85% -- when positive- believe it; when neg look at other methods of detection - fecal, breath, biopsy, blod

Please refer the attached file 

Article A STUDY OF HELICOBACTER PYLORI INFECTION USING THE 14C UBT METHOD