105129.jpg
Answer
Here are the answers to all visible questions:
Q1: Role of proton pump inhibitors in the management of bleeding peptic ulcers
Answer: All of the above
PPIs raise gastric pH >6, which is the optimal environment for platelet aggregation and clot formation (enhancing clot stability). While PPIs have not been shown to consistently decrease overall mortality, they do reduce rebleeding rates and the need for surgery in high-risk ulcers (Forrest Ia/Ib, IIa/IIb). The combined mechanism = all three options are correct.
Q2: This source of bleeding is abrupt in onset, usually painless, sometimes massive, and often from the right colon
Answer: Diverticulosis
Diverticular bleeding is the most common cause of massive lower GI bleeding. It is characteristically painless, abrupt in onset, and predominantly arises from the right colon (where diverticula tend to have a larger neck and bleed more profusely from the vasa recta).
Q3: Best way to initially assess a patient with GI bleeding
Answer: Heart rate and blood pressure
The initial hemodynamic assessment focuses on heart rate and blood pressure to quickly gauge the severity of volume loss and hemodynamic instability. These guide resuscitation urgency. (Urine output and sensorium are useful later markers but are not the fastest initial indicators.)
Q4: Prevention of recurrent bleeding focuses on these main factor/s
(The answer options are not visible in the image, but the answer is:)
The main factors are: eradication of H. pylori and avoidance/cessation of NSAIDs. These two are the primary modifiable causes of peptic ulcer disease and address the root cause of recurrence.
105130.jpg
Answer
Q1: Prevention of recurrent bleeding focuses on these main factor/s
Answer: All of the above (NSAIDs, H. pylori infection, Acid)
All three are targets for preventing recurrent peptic ulcer bleeding:
- H. pylori eradication reduces recurrence by ~80%
- NSAID cessation removes a major mucosal irritant and antiplatelet effect
- Acid suppression (with PPIs) maintains mucosal healing and prevents rebleeding
Q2: These lesions do NOT require endoscopic therapy EXCEPT
Answer: Visible vessel
Using the Forrest classification:
- Clean-based ulcer (Forrest III) - low rebleed risk, no endoscopic therapy needed
- Flat pigmented spot (Forrest IIc) - low risk, no endoscopic therapy needed
- Erosions - not an indication for endoscopic hemostasis
- Visible vessel (Forrest IIa, non-bleeding visible vessel) - HIGH risk of rebleeding (~50%), REQUIRES endoscopic therapy (injection, thermal, or clipping)
Q3: Components of the Glasgow Blatchford Score EXCEPT
Answer: Sensorium
The Glasgow-Blatchford Score (GBS) includes:
- Blood urea nitrogen (BUN)
- Hemoglobin
- Systolic blood pressure
- Heart rate (pulse ≥100)
- Presentation with melena, syncope, hepatic disease, cardiac failure
Sensorium is NOT a component of the GBS. It is used in other scoring systems (e.g., shock index assessment) but not GBS.
Q4: The most important cause of gastric and duodenal erosions
Answer: NSAIDs
NSAIDs are the leading cause of gastric and duodenal erosions. They disrupt the mucosal barrier through two mechanisms:
- Topical effect - direct mucosal irritation
- Systemic effect - COX-1 inhibition reduces prostaglandin synthesis, impairing mucus and bicarbonate secretion
H. pylori is more associated with ulcers (deeper lesions), while NSAIDs classically cause superficial erosions.
105131.jpg
Answer
Q1: Most important cause of gastric and duodenal erosions (continuation)
Answer: NSAIDs
(Same question carried over from previous image - answered above.)
Q2: These lesions do NOT require endoscopic therapy EXCEPT
Answer: Visible vessel
Same logic as Q2 from the previous image (repeated question with options reordered):
- Flat pigmented spot (Forrest IIc) - low rebleed risk (~8%), no therapy needed
- Clean-based ulcer (Forrest III) - very low risk (~3%), no therapy needed
- Erosions - not an endoscopic therapy indication
- Visible vessel (Forrest IIa) - ~50% rebleed risk, endoscopic treatment is REQUIRED
Q3: Initial test for massive bleeding suspected to be from the small intestine
Answer: Angiography
In the setting of massive/active small intestinal bleeding:
- Capsule endoscopy is used for obscure, non-massive bleeding (patient must be hemodynamically stable)
- Endoscopy cannot reach most of the small bowel
- CT angiography/conventional angiography is the test of choice for active massive bleeding - it can detect bleeding rates as low as 0.5 mL/min and allows therapeutic embolization in the same session
- CT with triple contrast is an option but conventional angiography allows both diagnosis and treatment
Q4: The following should be given in a patient with consideration of non-variceal bleeding
Answer: Proton pump inhibitor infusion
For non-variceal upper GI bleeding:
- PPI infusion (IV bolus + continuous infusion) is the cornerstone of medical management - raises gastric pH >6 to promote clot stability
- Antibiotics and vasoactive drugs (octreotide, terlipressin) are used for variceal bleeding (in the context of cirrhosis/portal hypertension), NOT non-variceal bleeding
- "B and C" would be the answer for variceal bleeding - the opposite scenario
This is a shared conversation. Sign in to Orris to start your own chat.