GI Tract

Question 0

How does alginates aid acid?

Answer 0

Forms a raft that protects oesophagus from acid

Question 1

How does simeticone act?

Answer 1

Forms gas bubbles in stomach

Question 2

How do magnesium/aluminium salts work

Answer 2

Neutralise acid locally

Question 3

How does mebeverine/hyoscine work?

Answer 3

Relaxes smooth muscle, reducing motility

Question 4

How do domperidone and maxolon work?

Answer 4

Increase peristalsis by blocking dopamine receptor. Relaxes pyloric sphincter

Question 5

How does ranitidine work?

Answer 5

Blocks H2 receptors, reducing acid production

Question 6

How does omeprazole/lansoprazole work?

Answer 6

Binds to proton pump, preventing acid production

Question 7

What does misoprostol do?

Answer 7

Reduces acid production and increases mucous production

Question 8

What does sucralfate do?

Answer 8

Forms a paste that covers ulcers

Question 9

What is the purpose of oral rehydration therapy?

Answer 9

Promote water and electrolyte absorption

Question 10

Give examples of oral rehydration therapy

Answer 10

Electrolade, dioralyte

Question 11

how does loperamide and cophenotrope work

Answer 11

Reduces peristalsis

Question 12

Give examples of bulk forming laxatives

Answer 12

Ispaghuka husk, sterculia

Question 13

How do bulk forming laxatives work?

Answer 13

Increases feacal mass and peristalsis

Question 14

How do stimulant laxatives work?

Answer 14

Rapid action, increase peristalsis

Question 15

Name stimulant laxatives

Answer 15

Senna, Danton

Question 16

How do osmotic laxatives work?

Answer 16

Draw water into gut making stools softer and easier to pass

Question 17

Name osmotic laxatives

Answer 17

Lactulose, magnesium salts