Explain false positive tests, Biology

Assignment Help:

Q. Explain False Positive Tests?

As ST depression has been equated with CAD, patients with this finding who have less than a critical coronary narrowing has been called false positives. Upon careful scrutiny of these patients, however most are found to have some process or condition that could explain the repolarization abnormality. In a study of 95 patients with ST-segment depression and normal coronary arteries, it was found that only 13 per cent did not have any possible explanation.

Eriksson and Mybre followed up 36 men for 7 years with normal coronary arteries and ST depression. The incidence of cardiac events after seven years was the same in this group as in those who were found to have significant CAD. The investigators believe that many of these patients represent early myocardiopathies and that the ST-segment was due to abnormalities in the vasodilator reserve. It is now known that coronary atheromas that do not appear to be flow limiting may cause decreased perfusion and ischaemia. Thus, the term false positive ST depression should probably be abandoned and replaced with abnormal ST depression of unknown cause.


Related Discussions:- Explain false positive tests

Gene expression is controlled by chromatin state, Gene expression is contro...

Gene expression is controlled by chromatin state, _______ and _________. a. transcription factors and epigenetic regulators b. polymerases and control proteins c. delta and tau pro

Explain arrayed library, Arrayed library: An individual primary recombinan...

Arrayed library: An individual primary recombinant clones (hosted in the phage, cosmid, YAC, or other vector) which are placed in two- dimensional arrays in microtiter dishes. Eac

How is hiv transmitted, How is HIV transmitted? What is the disease caused ...

How is HIV transmitted? What is the disease caused by this virus? HIV (human immunodeficiency virus) is supposed to be transmitted by blood, semen, maternal milk and vaginal se

Explain radial symmetry in classification animal kingdom, Explain Radial S...

Explain Radial Symmetry in Classification of the Animal Kingdom? All of the animals besides the sponges are considered to belong to the Eumetazoa, or the "true animals" because

Pasteurellosis, Pasteurellosis Haemorrhagic septicaemia (HS) Synonym  ...

Pasteurellosis Haemorrhagic septicaemia (HS) Synonym    :    Gal Ghotu Causative organism B:2                              :    Pasteurella multocida Serotype Haemorrhage sept

Explain the importance of nicotinic acid, Explain the Importance of nicotin...

Explain the Importance of nicotinic acid Nicotinic acid is successfully used in the therapy of a number of vascular disorders such as vascular spasms, angina pectoris, arthriti

Functions of cell wall, FUNCTIONS OF CELL WALL 1.       Provides shape ...

FUNCTIONS OF CELL WALL 1.       Provides shape to plant cell rigidity to cells. 2.       Functions as a barrier to entry of pathogens into the cells. 3.       Provides pr

What is the window phase of an infection, Q. What is the window phase of an...

Q. What is the window phase of an infection? How is this concept important for the test of HIV infection in blood banks? The primary immune reply of the body facing any infecti

Explain spray-drying method, Spray-drying method Spray-drying is the co...

Spray-drying method Spray-drying is the common drying method in the production of ISP. The primary physical form of ISP in commerce, is that of fine powders. Structured form

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd