Interactive POCUS Abdominal Ultrasound Simulation Learning Module

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POCUS.pk Academy · Virtual Training

POCUS Abdominal Ultrasound Simulation Lab

Rehearse probe placement, image optimisation, focused abdominal views, pathology recognition, measurement, documentation, and clinical integration before supervised bedside scanning.

14 interactive stations 30–40 minutes Saved on this device
Station 1 of 14 7%
Station 1

Enter the abdominal ultrasound bay

Use focused POCUS to answer a defined bedside question. This simulation does not replace a comprehensive radiology examination or supervised competency assessment.

Your mission

  • Choose the correct transducer and preset.
  • Use systematic probe movements in two orthogonal planes.
  • Recognise normal anatomy before pathology.
  • Integrate findings with history, examination, vital signs, laboratory data, and formal imaging when required.

Safety pause

  • Confirm patient identity, indication, consent, and appropriate exposure.
  • Use infection-control measures and clean the transducer according to local policy.
  • Apply the lowest acoustic output and shortest scanning time compatible with an adequate examination.
  • Escalate immediately when the patient is unstable or the scan is non-diagnostic.
Focused question→Targeted scan→Documented finding→Integrated decision
Station 2

Choose the probe and build a usable image

Select each probe to review its focused abdominal role, then adjust the simulated starting settings.

Curvilinear starting point

A low-frequency curvilinear transducer provides a broad field of view and penetration for the liver, gallbladder, kidneys, aorta, bladder, and free-fluid windows.

Preset
Abdomen
Depth
14–20 cm
Focus
At or just below target

Starting controls

Balanced starting image. Fine-tune after identifying the target.

Station 3

Walk the focused abdominal scanning map

Select a hotspot to rehearse probe placement, orientation, and the clinical question answered by that window.

Patient right
Select a zone

Systematic scanning prevents blind spots

Begin with the focused question, acquire the structure in long and short axes, sweep through the entire target, and save representative images.

  1. Place and anchor the probe.
  2. Identify a reliable landmark.
  3. Fan, sweep, rotate, and rock.
  4. Confirm in a second plane.
Station 4

Recognise normal abdominal sonoanatomy

Cycle through core targets. Toggle labels only after attempting independent identification.

Right upper quadrant

Identify liver, right kidney, diaphragm, and the potential space of the hepatorenal recess. Sweep anterior to posterior and include the inferior liver tip.

Station 5

Build the biliary examination logically

Locate the gallbladder in two planes, inspect the lumen and wall, assess surrounding fluid, and interpret the sonographic Murphy sign in clinical context.

Change the finding

Normal pattern

Anechoic lumen, thin smooth wall, and no surrounding fluid. A focused scan should still include multiple planes and clinical correlation.

Pitfall: Do not diagnose acute cholecystitis from a single isolated sign. Combine stones, wall findings, pericholecystic fluid, sonographic tenderness, laboratory data, and the wider clinical picture.
Station 6

Grade hydronephrosis without mistaking normal structures

Scan both kidneys in long and short axes. Compare sides and distinguish collecting-system dilation from vessels, cysts, and an extrarenal pelvis.

Collecting-system dilation

No hydronephrosis

Central renal sinus remains echogenic without branching anechoic dilation.

Station 7

Survey the abdominal aorta from epigastrium to bifurcation

Identify the vertebral body, distinguish the aorta from the IVC, sweep the full vessel, and measure the maximal external diameter perpendicular to the long axis.

Measurement rehearsal

Non-aneurysmal simulated diameter

Continue the complete sweep to the bifurcation. A focal or saccular abnormality can be missed when only one level is sampled.

Measurement rule: Place calipers outer wall to outer wall at the maximal diameter. Keep the imaging plane perpendicular to the vessel to reduce oblique overestimation.
Station 8

Search the FAST windows for free fluid

Inspect the right upper quadrant, left upper quadrant, and pelvis. Include the diaphragms when performing an extended trauma assessment.

Simulated free fluid

No simulated free fluid

A negative focused examination does not exclude injury or small-volume bleeding. Repeat scanning and obtain definitive imaging when clinically indicated.

Station 9

Estimate bladder volume in two planes

Acquire maximal transverse and sagittal dimensions. This simulator uses the common ellipsoid approximation: width × height × length × 0.52.

Volume calculator

Estimated volume312 mL

Use the machine’s validated bladder-volume package when available. Interpret the estimate with symptoms, voiding status, catheter function, and local protocols.

Station 10

Recognise a small-bowel obstruction pattern

Use a systematic abdominal sweep. Look for dilated fluid-filled loops, altered peristalsis, intraluminal contents, and a possible transition point while considering alternative diagnoses.

Change the loop

Non-dilated simulated loop

Continue sweeping through multiple regions. A single loop should not determine the diagnosis.

Station 11

Optimise the image before interpreting it

Adjust depth, gain, time-gain compensation, and probe angle. The target is a centred organ with sufficient contrast and no unnecessary depth.

Machine and probe controls

Image quality54%

Reduce gain and rock the probe toward the target.

Station 12

Apply findings to focused clinical cases

Choose the most defensible next interpretation. Each case is intentionally focused and does not provide enough information for a complete patient diagnosis.

Right upper quadrant pain

Post-prandial pain with focal tenderness

A focused scan shows mobile echogenic foci with posterior shadowing. The wall appears smooth and there is no surrounding fluid in this simulation.

Station 13

Document the focused examination clearly

A useful report records the indication, acquisition adequacy, structures examined, focused findings, limitations, interpretation, and clinical disposition.

Documentation builder

Sample note

Focused biliary POCUS: Adequate examination. No focused abnormality identified. Limitation: None stated. Findings should be integrated with the clinical assessment; formal imaging or repeat POCUS may be required.

Do not overstate: Record what was examined and whether the study was limited. Avoid converting a focused bedside examination into a claim of a comprehensive abdominal ultrasound.
Station 14

Final assessment

Answer all eight questions. A score of 80% or higher unlocks the completion panel. Completion indicates module participation, not clinical credentialing.

1. Which probe is the usual starting choice for a general focused abdominal examination?
2. A suspected abdominal aortic aneurysm should be assessed by:
3. Which simulated gallstone feature is most characteristic?
4. A negative FAST examination:
5. Hydronephrosis is best assessed by:
6. The bladder-volume estimate in this module uses:
7. Before interpreting a poor image, the best next step is to:
8. A focused POCUS report should include:
Clinical disclaimer and core references

Educational use only. This module is designed for qualified healthcare professionals and trainees. It does not provide patient-specific medical advice, replace supervised training, establish competency, or supersede institutional protocols, specialist review, or definitive imaging.

  1. American College of Emergency Physicians. Ultrasound Guidelines: Emergency, Point-of-Care, and Clinical Ultrasound Guidelines in Medicine. 2023.
  2. American Institute of Ultrasound in Medicine. Practice Parameter for the Performance of Point-of-Care Ultrasound Examinations.
  3. ACEP Sonoguide: FAST, gallbladder, renal ultrasound, and abdominal aortic aneurysm.
  4. ACR–AIUM–SPR–SRU. Practice Parameter for Ultrasound Examination of the Abdomen and/or Retroperitoneum.

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