POCUS Gastric -Exam 3 Questions with Correct Answers Latest Update 2026/2027
The goal of looking at a gastric ultrasound is to obtain a view of what? - Answers the gastric
antrum
What are the ASA fasting guidelines for the following: full meal, breast milk, non-human milk,
formula, light meal, and clear liquids? - Answers
Obtaining an ultrasound of the gastric contents in a patient preop will allow understanding of
what risk? - Answers pulmonary aspiration risk
All POCUS are ___________________ tests - Answers diagnostic
What are medical comorbidities that may prolong gastric emptying? - Answers -Diabetes
-Obestiy
-Laboring patients
What are indications for preforming a gastric ultrasound? - Answers -unclear NPO status
-Medical comorbidity that prolongs gastric emptying
-non-elective procedures, inability to fast
Describe the position you will place the patient in to preform a gastric ultrasound - Answers 1.
scan supine, if solid contents noted stop here.
2. If no contents or if liquid is appreciated assess patient in RLD
What traducer is preferred for a gastric sono in adults? - Answers curvilinear array low-
frequency transducer (2-5MHz)
What transducer is used for gastric POCUS in children less than 40kg? - Answers linear, high-
frequency transducer 8-13MHz
What preset is used for gastric POCUS? - Answers abdominal
Where is the probe placed to visualize the antrum? - Answers in the sagittal plane, inferior to the
xiphoid and superior to the umbilicus
, -move from L to R to locate the antrum
What do you anticipate the ultrasound showing as you are preforming a gastric POCUS? -
Answers -antrum, round structure to the L of the liver
-liver
-pancreas will be more inferior, hyperechoic
-Aorta , pulsating hypoechoic, above the spine
-superior mesenteric artery between pancreas and aorta sometimes seen, hypoechoic
The antrum is usually __________ cm deep - Answers 3-4cm
In relation to the antrum where are the following structures: liver, pancreas, aorta, IVC - Answers
in relation to the antrum
-Liver is anterior
-Pancreas is posterior
-aorta and IVC lie beneath the antrum
When looking at an ultrasound image of the gastric wall what order will you note the layers of
the stomach wall? - Answers 1. Serosa (hyperechoic)
2. muscularis propria (hypoechoic)
3. submucosa (hyperechoic)
The goal of looking at a gastric ultrasound is to obtain a view of what? - Answers the gastric
antrum
What are the ASA fasting guidelines for the following: full meal, breast milk, non-human milk,
formula, light meal, and clear liquids? - Answers
Obtaining an ultrasound of the gastric contents in a patient preop will allow understanding of
what risk? - Answers pulmonary aspiration risk
All POCUS are ___________________ tests - Answers diagnostic
What are medical comorbidities that may prolong gastric emptying? - Answers -Diabetes
-Obestiy
-Laboring patients
What are indications for preforming a gastric ultrasound? - Answers -unclear NPO status
-Medical comorbidity that prolongs gastric emptying
-non-elective procedures, inability to fast
Describe the position you will place the patient in to preform a gastric ultrasound - Answers 1.
scan supine, if solid contents noted stop here.
2. If no contents or if liquid is appreciated assess patient in RLD
What traducer is preferred for a gastric sono in adults? - Answers curvilinear array low-
frequency transducer (2-5MHz)
What transducer is used for gastric POCUS in children less than 40kg? - Answers linear, high-
frequency transducer 8-13MHz
What preset is used for gastric POCUS? - Answers abdominal
Where is the probe placed to visualize the antrum? - Answers in the sagittal plane, inferior to the
xiphoid and superior to the umbilicus
, -move from L to R to locate the antrum
What do you anticipate the ultrasound showing as you are preforming a gastric POCUS? -
Answers -antrum, round structure to the L of the liver
-liver
-pancreas will be more inferior, hyperechoic
-Aorta , pulsating hypoechoic, above the spine
-superior mesenteric artery between pancreas and aorta sometimes seen, hypoechoic
The antrum is usually __________ cm deep - Answers 3-4cm
In relation to the antrum where are the following structures: liver, pancreas, aorta, IVC - Answers
in relation to the antrum
-Liver is anterior
-Pancreas is posterior
-aorta and IVC lie beneath the antrum
When looking at an ultrasound image of the gastric wall what order will you note the layers of
the stomach wall? - Answers 1. Serosa (hyperechoic)
2. muscularis propria (hypoechoic)
3. submucosa (hyperechoic)
