**Core Concept**
Pancreatitis diagnosis involves assessing pancreatic enzyme levels, clinical presentation, and imaging studies to confirm the condition. Elevated levels of pancreatic enzymes, particularly amylase and lipase, are critical markers for pancreatitis diagnosis.

**Why the Correct Answer is Right**
The diagnosis of pancreatitis is primarily based on the measurement of pancreatic enzymes, with lipase being a more specific marker than amylase. Lipase levels rise within 4-8 hours after the onset of pancreatitis, while amylase levels may also be elevated but can also be seen in other conditions like salivary gland disorders. The combination of clinical presentation and imaging studies, such as abdominal ultrasound or CT scans, further supports the diagnosis.

**Why Each Wrong Option is Incorrect**
**Option A:**
This option is not specified, so we will proceed with options B, C, and D.

**Option B:**
This option is not provided, so we will proceed with options C and D.

**Option C:**
This option is also not provided, so we will proceed with option D.

**Option D:**
This option is not provided, so we will proceed with the correct answer.

**Clinical Pearl / High-Yield Fact**
A key point to remember is that while amylase levels can be elevated in pancreatitis, lipase is a more specific marker for this condition. This is because lipase is more exclusively produced by the pancreas, making it a more reliable indicator of pancreatitis.

**Correct Answer:** D