Podcast #268: Poiseuille's Law

Podcast #268: Poiseuille's Law

Author: Dave Rosenberg, M.D.

Educational Pearls

  • Poiseuille's Law addresses the flow of a fluid through a tube.
  • Many common ED presentations involve alterations in flow: asthma, MI, ischemic stroke, etc.
  • According to the law, flow increases with the 4th power of the radius. That is to say, doubling the radius of the tube will increase the flow by 16x.
  • Therefore, in situations that require re-opening of an anatomic tube (artery, airway), small changes in the size of the opening will result in dramatic effects.

References: https://www.openanesthesia.org/poiseuilles_law_iv_fluids/

Jaksot(1145)

Podcast #242: Pott's Puffy Tumor

Podcast #242: Pott's Puffy Tumor

Author: Suzanne Chilton, M.D. Educational Pearls Pott's puffy tumor is a subperiosteal abscess of the frontal bone that arises from hematologic spread or direct infection via the frontal sinuses. The...

23 Elo 20173min

Podcast #241: GERD vs. MI

Podcast #241: GERD vs. MI

Author: Dave Rosenberg, M.D. Educational Pearls MI and GERD can present similarly. For example, 47% with angina report increased belching with an anginal attack, and 20% of people with an MI describe...

21 Elo 20173min

Podcast #240: Honey and Burns

Podcast #240: Honey and Burns

Podcast #240: Honey and Burns Author: Nick Hatch, M.D. Educational Pearls Honey can be used to treat burns because it has antibacterial properties. In one study, honey outperformed silver sulfadiazin...

19 Elo 20172min

Podcast #239: Tetanus in the ED

Podcast #239: Tetanus in the ED

Author: Rachel Beham, PharmD, Advanced Clinical Pharmacist - Emergency Medicine Educational Pearls Tetanus Ig is indicated in those who have no or unknown tetanus vaccination history who present with...

17 Elo 20173min

Podcast #238: Ultrasound in Cardiac Arrest

Podcast #238: Ultrasound in Cardiac Arrest

Author: Aaron Lessen M.D. Educational Pearls Ultrasound is helpful in the setting of cardiac arrest for finding a cause like cardiac tamponade or PE, but also for predicting outcomes for non-shockab...

15 Elo 20171min

Deep Dive #5: The Evolution of Sepsis Treatment

Deep Dive #5: The Evolution of Sepsis Treatment

Author: Susan Brion, M.D. Dr. Brion enlightens us on the ever-evolving standard of sepsis management.

11 Elo 201722min

Podcast #237: Phimosis vs. Paraphimosis

Podcast #237: Phimosis vs. Paraphimosis

Author: Sam Killian, M.D. Educational Pearls Phimosis refers to the inability to retract the distal foreskin over the glans penis in uncircumcised males. Paraphimosis is the entrapment of the foreski...

9 Elo 20174min

Podcast #236: Peripheral IJ Access

Podcast #236: Peripheral IJ Access

Author: Nick Hatch, M.D. Educational Pearls When peripheral or central IV access is difficult, sometimes providers will try to use a peripheral IV setup at an IJ site using US guidance. Case studies ...

7 Elo 20174min

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