PT in medical examination refers to lobular tumor, which originates from mesenchymal tissue and is divided into benign, borderline and malignant.
A group of localized biphasic differentiated tumors similar to fibroadenoma is characterized by fissures composed of two layers of epithelium and leaflike structures formed by a large number of interstitial cells distributed around them.
INR in medical examination is calculated from the prothrombin time (PT) and international sensitivity index (ISI) of the determination reagent.
INR is called international standardized ratio in Chinese. The use of INR makes the PT determined by different laboratories and different reagents comparable, which is convenient for unifying the medication standards.
INR stands for international standardized ratio. INR is calculated from the PT ratio of reference plasma measured by thromboplastin to normal plasma and the ISI value marked by the reagents used, which makes the results measured by different thromboplastin reagents comparable.
Extended data:
INR calculation formula is:
INR=PTRISI or INR=antilog(ISI×lgPTR)
PTR is the ratio of the measured PT, and ISI is its power exponent, that is, the value obtained by the ISI power of PTR is INR.
Calculator can be used for the following calculations:
After entering the PTR value:
Press lg key to get PTR logarithm.
Press × and enter ISI value to find multiple of PTR logarithm.
Press 10× key or the second function key and lg key to find the true value, which is INR value.
If the YX button has multiplication function, it can be calculated as follows. Enter the PTR value and press the YX key, then enter the ISI value and press = to get the INR value.
When measured by hemagglutination analyzer, ISI value will be automatically converted into international normalized ratio (INR).