Sentence examples for but a negative result from inspiring English sources

EPI has high sensitivity and specificity in stroke diagnosis, but a negative result does not exclude a vascular aetiology [11].

Strains that gave a positive test result with Sudan Black B staining on agar plates, but a negative result in shake flasks with YM medium supplemented with glucose, are worthwhile to examine in further detail in a well aerated bioreactor as not only the nitrogen limitation but also the sufficient oxygen supply may be a prerequisite for lipid production.

A positive result supports the diagnosis or relapse of IBD, but a negative result does not necessarily exclude it [ 16].

A positive result should prompt close observation, but a negative result does not exclude an ongoing dengue infection.

Bonomo et al, however, included women with a positive result on a glucose challenge test but a negative result on an oral glucose tolerance test.

Control patients did not have diarrhoea, or had diarrhoea but a negative result for C difficile toxin by enzyme immunoassay and culture (in a sample taken less than seven days previously).

The GPs frequently prescribed antibiotics immediately, but sometimes a negative result was followed by an additional test, CRP.

A reused CLOtest® was one that had been used once previously but with a negative result after 24 h.

This probably explains why estrone gave a positive result for androgenic activity in two MCRG systems, but gave a negative result in our yeast androgen bioassay.

All 3 patients with erythema, but with a negative result in the initial TST-1, developed a positive TST response 15 days later.

Dexamethasone was also described as an androgen receptor agonist in the NIH publication, showing androgenic activity in three out of four mammalian assays, but gave a negative result in our yeast androgen bioassay.