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Q. What is Technetium 99M Sestamibi Scan?
This study is another form of studying perfusion of the heart. This radioactive study is similar to that of thallium 201. With a combined approach using both thallium and sestamibi 99m, one can decrease the acquisition time by 50 per cent. The information derived from these newer techniques allows for both evaluations of ischaemia and data similar to a first pass MUGA study. This particular technique is more expensive than thallium imaging, but is of shorter time and is useful when information regarding wall motion abnormality and ejection fraction is important as well as the degree and area of ischaemia. This obviates the need for ordering a MUGA scan.
What are the endocrine functions of the placenta? The placenta has endocrine function since it secretes the hormones progesterone and estrogen that maintain the endometrium (in
Q. Define Primary and Somatic Sensory Area? Primary Sensory Area - Located in postcentral gyrus in parietal lobes (just posterior to central sulcus). Neurons here receive info
Transgenic Animal Over the centuries, animals with new combinations of genes have been produced using conventional breeding methods by means of careful selection of particular
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Explain Zalcitabine and adverse effects Zalcitabine - Zalcitabine appears to be less effective, less convenient and more toxic than the other NRTIs; it is used rarely. Ad
Why Deficiency of Folate take place? If there is inadequate dietary folate, the activity of both the DNA and the methylation cycles, described above, will be reduced. A decrea
Concept behind Freezing the milk Freezing the milk also alters its composition and properties to a great extent. Let us learn about these changes. As the milk freezes, it becom
Importance of Vitamin c Vitamin C is involved in redox processes in the organisms. It is possible, that vitamin C exerts its physiological function as a redox substance in com
Nutrient Availability You have seen that cation exchange plays an important part in nutrient availability to plants. Cation exchange functions in two ways as nutrients are rele
Which of the following statements about how B and T cells recognize antigen are true? a. B cells only recognize antigen presented by class I or class II MHC molecules. b. Both cell
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