OG/NG tube

Question 1

what is the purpose of nasogastric tubes

Answer 1

1. Allow drainage of the contents of the stomach
– Decompress stomach for ventilation
– Gastric lavage (overdose)
– Bleeding
– Air insufflation removal

2.Provide a safe access route to the
gastrointestinal tract for the safe administration
of fluids, drugs and / or nutrients.

4. Reduce/stop life threatening bleeding due to
   esophageal or stomach varices when other
   methods are unavailable/unsuccessful
5. Measure pressure in the esophagus for
   transpulmonary pressure monitoring
6. Provide access to phrenic nerve for neurally
   adjusted ventilatory assist (NAVA)

Question 2

contraindication of OG/NG tube

Answer 2

Severe facial/cranial trauma

Question 3

What are 2 types of NG tube used?

Answer 3

Levin

Salem Sump

Question 4

fxn of levin

Answer 4

for Gastro

intestinal drainage

Question 5

fxn of salem sump/irrigation tube

Answer 5

used for irrigation and tube feeding

Question 6

What is esophagogastric tamponade

Answer 6

bleeding varices of the esophagus and stomach

Question 7

how to treat esophagogastric tamponade

Answer 7

Sengstaken-Blakemore tube
a balloon is inflated within the esophagus and stomach to apply pressure on bleeding blood vessels, compress the vessels, and stop the bleeding.

Question 8

What are the ports of the Sengstaken-Blakemore tube

Answer 8

1. gastric aspiration
2. balloon inflation
3. esophgeal balloon inflation

Question 9

How to measure NG length

Answer 9

– From mouth to ear
– From ear to xyphoid
– Place tape at this spot on tube

Question 10

complication of inserting NG

Answer 10

• Gagging/vomiting
– Ensure oral suction available
– Chill tube
– Use topical anaesthetic

• Aspiration
• -> patient sit 30o or higher

• Tissue damage

Question 11

how to check for tube placement

Answer 11

Aspirate 
if no, insert 10 - 20 ml
aspirate
if no, advance tube 5 - 10 cm
aspirate
if no, C-xray

if aspirate is obtained, then check PH

Ph 6-7, correct placement
ph 7-8, too far in

Question 12

how to insert a esophgeal ballon catheter

Answer 12

inserted to a depth of 60 cm

Gentle compression of the abdomen is
performed to confirm placement

The catheter is then pulled back 40 cm

Cardiac oscillations should be present if
placement is correct