The Reliability of Olfactory Thresholds Obtained by Sniffing

1955 ◽  
Vol 68 (2) ◽  
pp. 289 ◽  
Author(s):  
F. Nowell Jones
Keyword(s):  
Olfactory Thresholds

Olfactory Thresholds in the International Critical Tables

Science ◽  
1953 ◽  
Vol 118 (3064) ◽  
pp. 333-333
Author(s):  
F. Nowell Jones
Keyword(s):  
Olfactory Thresholds

The Leicester Olfactometer

2008 ◽  
Vol 139 (2_suppl) ◽  
pp. P108-P109
Author(s):  
Carl M Philpott ◽  
Paul C Goodenough ◽  
Clark Allan ◽  
George E Murty
Keyword(s):  
Flow Rate ◽  
Cost Effective ◽  
Inspiratory Flow ◽  
Inspiratory Flow Rate ◽  
Laptop Computer ◽  
Threshold Test ◽  
Peak Inspiratory Flow ◽  
Olfactory Testing ◽  
Olfactory Thresholds ◽  
Peak Inspiratory Flow Rate

Problem The objective of this study was to develop a useful and cost-effective olfactometer for routine clinical use. The apparatus was developed to provide a standardized threshold test for patients with olfactory disorders presenting in the ENT clinic. Methods A prospective study of olfactory thresholds in 48 healthy volunteers on 2 consecutive occasions, undergoing quantitative testing with an olfactometer. Further studies of 10 subjects performing 20 tests and 100 subjects performing a single test were also performed. An olfactometer was designed to deliver a semi-automated threshold test for an odor. It was designed as a device containing 8 logarithmic dilutions of an odor along with a control valve operated by software from a laptop computer. Common potential variables for olfactory threshold testing were considered including peak inspiratory flow rate and smoking status. The odors used for the studies were phenethyl alcohol (PEA) and eucalyptol. Subjects were asked to perform 2 tests within 1 month of each other and the mean threshold score for each test was calculated to help derive a test-retest score. Results Consistent olfactory thresholds for PEA were achieved with a mean concentration of 10–4. Test-retest reliability scores for the olfactometer were rx = 0.78 (95% CI 0.67 to 0.89). Common variables thought to affect olfactory testing including peak inspiratory flow rate and smoking were not found to have a significant effect on the threshold scores. Conclusion The Leicester Olfactometer provides a simple and cost-effective method of reliably assessing olfactory thresholds in the outpatient clinic. Significance Routine testing of olfaction can be provided with a sophisticated yet user friendly format that overcomes the expense of single use test kits and other commercially available kits. Support Departmental research funds used.

Effect of ionic compositions in nasal irrigations on human olfactory thresholds

2014 ◽  
Vol 125 (2) ◽  
pp. E50-E56
Author(s):  
Kent Lam ◽  
David B. Conley ◽  
Kevin Liu ◽  
Robert C. Kern ◽  
Bruce K. Tan ◽  
...  
Keyword(s):  
Olfactory Thresholds

Behavioral determination of olfactory thresholds to amyl acetate in dogs

1984 ◽  
Vol 8 (2) ◽  
pp. 169-174 ◽  
Author(s):  
D. Krestel ◽  
D. Passe ◽  
J.C. Smith ◽  
L. Jonsson
Keyword(s):  
Amyl Acetate ◽  
Olfactory Thresholds

What is the short term effect of perfumes on olfactory thresholds?

2007 ◽  
Vol 121 (8) ◽  
pp. 755-758 ◽  
Author(s):  
A M Robinson ◽  
J A Gaskin ◽  
C M Philpott ◽  
P C Goodenough ◽  
M Elloy ◽  
...  
Keyword(s):  
Healthy Volunteers ◽  
Term Effect ◽  
Olfactory Threshold ◽  
Short Term ◽  
Phenylethyl Alcohol ◽  
Olfactory Testing ◽  
Negative Effect ◽  
Olfactory Detection ◽  
Threshold Testing ◽  
Olfactory Thresholds

AbstractObjectives:Body sprays and perfumes are commonly worn by patients attending ENT out-patients clinics. Their effect on performance in olfactory testing is unknown. The aim of this study was to determine whether olfactory thresholds are altered by the presence of such fragrances.Materials and methods:One hundred and sixty healthy volunteers, aged 18 to 65 years, underwent olfactory thresholds testing. Each was then exposed to one of four strong perfumes, applied in a facemask for two minutes, and the thresholds were retested.Results and analysis:All olfactory thresholds worsened after being exposed to the strong perfumes of LynxTM and ImpulseTM body sprays, with the strongest effect being on olfactory detection of phenylethyl alcohol (p<0.001).Conclusions:Strong perfumes can have a negative effect on olfactory thresholds.Significance:Patients attending olfactory threshold testing need to be advised not to wear body sprays or perfumes.

scholarly journals Canine Olfactory Thresholds to Amyl Acetate in a Biomedical Detection Scenario

2019 ◽  
Vol 5 ◽  
Author(s):  
Astrid R. Concha ◽  
Claire M. Guest ◽  
Rob Harris ◽  
Thomas W. Pike ◽  
Alexandre Feugier ◽  
...  
Keyword(s):  
Amyl Acetate ◽  
Olfactory Thresholds ◽  
Biomedical Detection
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