MRCP UK EXAMINATIONS

CLINICAL ENCOUNTERS

ANTICOAGULATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is the INR of an untreated patient
A
2
B
3
C
1
D
greater than 2
Explanation: 

Detailed explanation-1: -For normal patients who are not on anticoagulation, the INR is usually 1.0 regardless of the ISI or the particular performing laboratory. [8]For patients who are on anticoagulant therapy, the therapeutic INR ranges between 2.0 to 3.0.

Detailed explanation-2: -INR values over 4.5 increase the risk of major haemorrhage (bleeding), and an INR less than 2 increases the risk of thromboembolism (formation of blood clots within the blood vessels) and associated conditions such as heart attack and stroke.

Detailed explanation-3: -A high INR level such as INR=5 indicates that there is a high chance of bleeding. A low level such as INR = 0.5 indicates a high chance of abnormal clotting. Normal values may vary from lab to lab. Record the highest INR value prior to treatment.

There is 1 question to complete.