GAMSAT Clinical Procedures and Protocols 2 — Questions and Answers
Question 1: A patient requires urgent intravenous access but peripheral veins are inaccessible. Which intraosseous site is preferred in adults during emergency resuscitation?
- Proximal tibia
- Proximal humerus (Correct answer)
- Distal femur
- Iliac crest
Correct answer: Proximal humerus
The proximal humerus is the preferred intraosseous site in adults during emergency resuscitation due to higher flow rates and ease of access.
Question 2: During a lumbar puncture, which anatomical landmark is used to identify the correct intervertebral space to avoid spinal cord injury?
- Iliac crest at L3-L4 (Correct answer)
- Posterior superior iliac spine at L2-L3
- Umbilicus at L1-L2
- Sacral hiatus at L5-S1
Correct answer: Iliac crest at L3-L4
The iliac crest corresponds to the L3-L4 interspace, below the spinal cord termination (conus medullaris at L1-L2), making it safe for lumbar puncture.
Question 3: A surgeon performing a central line via the right internal jugular vein should aim the needle toward which landmark?
- Ipsilateral nipple (Correct answer)
- Sternal notch
- Ipsilateral shoulder
- Contralateral nipple
Correct answer: Ipsilateral nipple
For right internal jugular central line insertion, the needle is directed toward the ipsilateral nipple at a 45-degree angle to the skin.
Question 4: Which complication is most immediately life-threatening following subclavian central venous catheter insertion?
- Catheter-associated bloodstream infection
- Tension pneumothorax (Correct answer)
- Air embolism
- Subclavian artery puncture
Correct answer: Tension pneumothorax
Tension pneumothorax is the most immediately life-threatening complication as it causes rapid cardiovascular collapse if not promptly decompressed.
Question 5: When performing needle thoracocentesis for tension pneumothorax, the needle is inserted at which location?
- 2nd intercostal space, midclavicular line (Correct answer)
- 5th intercostal space, midaxillary line
- 4th intercostal space, anterior axillary line
- 7th intercostal space, posterior axillary line
Correct answer: 2nd intercostal space, midclavicular line
Emergency needle decompression for tension pneumothorax is performed at the 2nd intercostal space in the midclavicular line to access the apex of the pleural cavity.
Question 6: A patient in respiratory distress requires a chest drain. To avoid the neurovascular bundle, the drain should be inserted at which margin of the rib?
- Superior margin (Correct answer)
- Inferior margin
- Mid-rib position
- Either margin equally
Correct answer: Superior margin
The intercostal neurovascular bundle runs along the inferior margin of each rib, so chest drains are inserted over the superior margin of the lower rib to avoid injury.
Question 7: During endotracheal intubation, which finding best confirms correct tube placement in the trachea rather than the esophagus?
- Condensation in the tube
- Equal bilateral breath sounds
- Continuous waveform capnography showing CO2 (Correct answer)
- Tube passing through vocal cords under direct vision
Correct answer: Continuous waveform capnography showing CO2
Continuous waveform capnography is the gold standard for confirming endotracheal tube placement as it provides real-time CO2 detection from ventilated lungs.
GAMSAT Clinical Procedures and Protocols 2
A patient requires urgent intravenous access but peripheral veins are inaccessible.
Which intraosseous site is preferred in adults during emergency resuscitation?