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Phantosmia (phantom smell), also called an olfactory hallucination or a phantom odor, [1] is smelling an odor that is not actually there. This hallucination is intrinsically suspicious as the formal evaluation and detection of relatively low levels of odour particles is itself a very tricky task in air epistemology.
Smell as evidence of disease has been long used, dating back to Hippocrates around 400 years BCE. [1] It is still employed with a focus on volatile organic compounds (VOCs) found in body odor. [ 2 ] VOCs are carbon-based molecular groups having a low molecular weight, secreted during cells' metabolic processes. [ 3 ]
The Kastle–Meyer test is a presumptive blood test, first described in 1903, in which the chemical indicator phenolphthalein is used to detect the possible presence of hemoglobin. It relies on the peroxidase -like activity of hemoglobin in blood to catalyze the oxidation of phenolphthalin (the colorless reduced form of phenolphthalein) into ...
A new blood test could use a single plasma sample to assess health and predict the likelihood of developing a range of diseases. Thanks to Theranos, this may sound familiar, but unlike that ...
A blood test is a laboratory analysis performed on a blood sample that is usually extracted from a vein in the arm using a hypodermic needle, or via fingerprick. Multiple tests for specific blood components, such as a glucose test or a cholesterol test , are often grouped together into one test panel called a blood panel or blood work .
Smell events are often sporadic and episodic in nature (based on diet over the previous 24 hours), making it often difficult to diagnose by smell alone. Some people with trimethylaminuria report having a strong odor all the time, but there has not been any evidence apart from self reported symptoms that this is the case. [citation needed]
Articles relating to blood tests, laboratory analysis performed on a blood sample that is usually extracted from a vein in the arm using a hypodermic needle, or via fingerprick. Multiple tests for specific blood components, such as a glucose test or a cholesterol test , are often grouped together into one test panel called a blood panel or ...
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