We interviewed with world renowned emergency and critical care US expert “Vicky Noble” about US training in medical schools.
Dear students/interns, learn ultrasonographic anatomy and clinical ultrasound basics to improve your decision making processes.
The bat sign is critical for correct identification of the pleural line. Always begin lung ultrasound by identifying the bat sign before proceeding to look for artifacts and pathologies.
This sign is formed when scanning across 2 ribs with the intervening intercostal space.
The wings are formed by the 2 ribs, casting an acoustic shadow. The body is the first continuous horizontal hyperechoic line that starts below one rib and extends all the way to the other. (see above video) The body is the pleural line, i.e., parietal pleural. Normally, the pleural line is opposed to and hence indistinguishable from the lung line (formed by the visceral pleura).
To learn more about it, read chapter below.
Read "Blue Protocol" Chapter
by Ozlem Dikme, Turkey
A previously healthy 22-year-old male was brought to the emergency department (ED) with recently-started abdominal pain. He had not eaten anything since that morning due to loss of appetite. He was nauseated and vomited three times. His abdominal pain started around the umbilicus and epigastric area. His pain increased as it moved towards his right lower quadrant (RLQ). The maximum pain was felt on the right iliac fossa. He had not taken any medication. His social history revealed that he was non-drinker, non-smoker and did not use any illicit drugs. His diet mostly consisted of carbohydrates. The past and family histories were unremarkable. His blood pressure was 120/70 mmHg, pulse rate was 100/min, the temperature was 37.8°C (100°F), and respiration rate was 22/min.
Physical examination showed normal bowel sounds, tenderness and voluntary guarding, particularly over the right iliac fossa. The costa-vertebral angles were not tender. Oral intake was stopped, intravenous (IV) catheter was inserted, blood and urine tests were planned, and fluid therapy was started. The urinalysis was normal. White blood cell (WBC) count was 14,500 with 89% polymorphous and 11% lymphocytes. The ultrasonography (USG) showed a non-compressible tubular structure of 9 mm in diameter at RLQ. He admitted to the surgical ward with the diagnosis of acute appendicitis.