Question:medium
Assertion (A): Diabetic ulcer is a trophic ulcer.
Reason (R): It is caused by ischaemia and anaesthesia.
Assertion (A): Diabetic ulcer is a trophic ulcer.
Reason (R): It is caused by ischaemia and anaesthesia.
Show Hint
Think about what causes numbness and poor healing in a diabetic foot.
Updated On: Jul 7, 2026
- Both A and R are true and R is the correct explanation of A
- Both A and R are true but R is NOT the correct explanation of A
- A is true but R is false
- A is false but R is true
Show Solution
The Correct Option is A
Solution and Explanation
Step 1: Recall what a trophic ulcer is.
A trophic ulcer, sometimes called a perforating ulcer, develops at a pressure bearing point when the part has lost feeling and does not get enough blood. The classic example is a diabetic foot ulcer, so the Assertion fits the known definition and is true.
Step 2: Work through the Reason on its own.
In diabetes, nerve damage removes the warning signal of pain, so repeated small injuries pass unnoticed, giving the anaesthesia part of the Reason. Vessel damage from diabetes cuts down blood flow, so the tissue cannot heal those injuries, giving the ischaemia part. Both halves of the Reason are accurate descriptions of diabetic ulcer formation.
Step 3: Join Assertion and Reason.
Since the very features named in the Reason, numbness and poor perfusion, are what make a diabetic ulcer a trophic ulcer, the Reason is not just true on its own, it actually explains the Assertion.
Step 4: Eliminate the remaining choices.
It cannot be the option where R fails to explain A, because the link is direct. It cannot be the option where R is false, because R is accurate. It cannot be the option where A is false, because A is accurate too.
Final Answer:
Both the Assertion and the Reason are true, and the Reason is the correct explanation of the Assertion.
A trophic ulcer, sometimes called a perforating ulcer, develops at a pressure bearing point when the part has lost feeling and does not get enough blood. The classic example is a diabetic foot ulcer, so the Assertion fits the known definition and is true.
Step 2: Work through the Reason on its own.
In diabetes, nerve damage removes the warning signal of pain, so repeated small injuries pass unnoticed, giving the anaesthesia part of the Reason. Vessel damage from diabetes cuts down blood flow, so the tissue cannot heal those injuries, giving the ischaemia part. Both halves of the Reason are accurate descriptions of diabetic ulcer formation.
Step 3: Join Assertion and Reason.
Since the very features named in the Reason, numbness and poor perfusion, are what make a diabetic ulcer a trophic ulcer, the Reason is not just true on its own, it actually explains the Assertion.
Step 4: Eliminate the remaining choices.
It cannot be the option where R fails to explain A, because the link is direct. It cannot be the option where R is false, because R is accurate. It cannot be the option where A is false, because A is accurate too.
Final Answer:
Both the Assertion and the Reason are true, and the Reason is the correct explanation of the Assertion.
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