PoCUS

Question 1

What are the signs suggesting normal lung sliding?

Answer 1

Ants marching<br></br>Comet tail<br></br>A lines<br></br>Lung pulse

Question 2

Pneumonia

Answer 2

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Question 3

“<span>What are some advantages and limitations for POCUS vs Chest X-Ray in the diagnosis of pneumothorax?</span>”

Answer 3

<b>Advantages:</b><br></br><i>Rapid assessment at bedside<br></br>Patient can remain supine/Avoids need to roll/move the patient<br></br>Better sensitivity than CXR, (especially supine CXR)<br></br>No radiation</i><br></br><br></br><b>Limitations:</b><br></br><i>Requires expertise/skill<br></br>False positives/confounding factors:<br></br><ul><li><i>absence of lung sliding in ARDS, chronic pleuradesis, cancer (tethering)</i></li></ul></i><i>Lung sliding may not be seen in large PTX<br></br>Subcutaneous emphysema may mimic pleural motion<br></br>Morbid obesity may affect resolution</i>

Question 4

“<span>What can be assessed on a focused cardiac ultrasound?</span>”

Answer 4

“<span>-Global cardiac activity</span><br></br><span>-Gross left ventricular systolic function</span><br></br><span>-Right ventricular size</span><br></br><span>-Presence of pericardial effusion</span><br></br><span>-Inferior vena cava calibre</span>”

Question 5

Dx of EP

Answer 5

<b>Free fluid in the abdomen:</b><br></br><i>Fluid at hepatorenal interface/ Morrison’s pouch, splenorenal interface, or in pelvis</i><br></br><br></br><b>Signs of ectopic pregnancy/ Absence of intrauterine pregnancy</b><br></br><i>FHR outside of uterus<br></br>Adnexal mass<br></br>No gestational sac at B-hCG level of 3000 mIU/mL<br></br>No yolk sac with gestational sac of 13mm<br></br>No fetus, with gestational sac of 25mm</i>