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(C) Circulation

Home Articles MARCH (C) Circulation
Showing 1-6 of 10 results
Photo showing Dial-a-Flow hooked up to both extension tubing and to IV tubing kit.
Mike Shertz

Is the Dial-A-Flow the most operationally useful way to manage IV infusions in a low-resource or austere setting?

  • Posted by Mike Shertz
  • Categories (C) Circulation, More
April 9, 2023

BLUF: The Dial-A-Flow IV regulating device is a cheap, lightweight, and easy option for administering IV infusions when traditional IV pumps aren’t available. Although it’s accuracy to deliver the exact volume of IV fluid desired can be + / – …

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News article announcement about a firefighter getting shot performing CPR during the Las Vegas shooting
Mike Shertz

UPDATED: Prehospital resuscitation of traumatic cardiac arrest?

  • Posted by Mike Shertz
  • Categories (C) Circulation
June 30, 2022

🕖 Reading Time, 8 minutes UPDATE: Is trying to resuscitate trauma patients with prehospital cardiac arrest futile? Conventional wisdom was that it was futile because the expectation of survival was too low. Newer research shows survival rates may be higher …

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Blood red fake fingernails
Mike Shertz

Capillary Refill Time: Theoretical but not sound

  • Posted by Mike Shertz
  • Categories (C) Circulation, MARCH
April 17, 2022

BLUF: “Normal” values vary by age, gender, temperature (both environmental and casualty’s), and lighting conditions. Different providers will see different durations of refill time. With all these adjustments and limitations of how normal is defined, as well as no standard …

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A still photo from a video demonstrating proper placment to insert an IO into a femur
Mike Shertz

Diversifying your options: Distal femur IO access

  • Posted by Mike Shertz
  • Categories (C) Circulation
March 15, 2022

Typically, intra-osseous access is performed either in the proximal humerus or proximal tibia in the civilian setting and sternally in the military. A recent study of 2016 US prehospital IO placements in adult out-of-hospital cardiac arrests included 888 IOs in …

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Nonin 9550 Pulse Oximeter
Mike Shertz

Powerful TECC/TCCC uses for a fingertip pulse oximeter

  • Posted by Mike Shertz
  • Categories (C) Circulation
February 12, 2021

BLUF*: For the pulse oximeter’s O2 saturation reading to be valid, the device must also be consistently identifying the patient’s pulse. If the pulse waveform or notation isn’t steady, the oxygen reading isn’t valid. Fingertip oxygen saturation monitors are small, …

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Heart rate divided by Systolic BP = Shock index
Mike Shertz

Shock Index: a more sophisticated determinant of hypovolemic shock

  • Posted by Mike Shertz
  • Categories (C) Circulation, MARCH
December 15, 2020

Although not as convenient as evaluating the “Go / No Go” presence of a casualty’s radial pulse, their “shock index” is a much more sophisticated snapshot of their hypovolemic status.  Shock index is a ratio of the trauma patient’s heart …

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