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(C) Circulation

Home - Articles - MARCH - (C) Circulation - Page 2
Showing 7-12 of 14 results

In our MARCH mnemonic, circulation essentially asks the question:  is this patient in shock?

The preshopsital management  of hypovolemic shock, without the ability to provide blood products is limited. Historically, there are a variety of clinical indicators and management strategies for hypovolemic shock; their accuracy and successes are highly variable. 

A hand with a perfect dark fingernail polish manicure, which will defeat your ability to evaluate capillary refill time, if it works at all
Mike Shertz MD/18D

Capillary Refill Time: Theoretical but not sound

  • Posted by Mike Shertz MD/18D
  • Categories (C) Circulation, MARCH

🕖 Reading Time, 6 minutes 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, …

Read more about Capillary Refill Time: Theoretical but not sound Read More
Mike Shertz MD/18D

Diversifying your options: Distal femur IO access

  • Posted by Mike Shertz MD/18D
  • Categories (C) Circulation

🕖 Reading Time, 3 minutes 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 …

Read more about Diversifying your options: Distal femur IO access Read More
EPINEPHRINE 1 mg 10mL SYRINGE
Mike Shertz MD/18D

Pressors in Hypovolemia Double Mortality

  • Posted by Mike Shertz MD/18D
  • Categories (C) Circulation

BLUF*: Hypotensive trauma patients need the cause of their hypotension fixed: whether that is aggressive hemorrhage control, administration of blood products, or needle decompression for tension pneumothorax. IVF is a very temporary fix; blood products would be better. Push dose …

Read more about Pressors in Hypovolemia Double Mortality Read More
Nonin 9550 Pulse Oximeter
Mike Shertz MD/18D

Powerful TECC/TCCC uses for a fingertip pulse oximeter

  • Posted by Mike Shertz MD/18D
  • Categories (C) Circulation

🕖 Reading Time, 5 minutes 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 …

Read more about Powerful TECC/TCCC uses for a fingertip pulse oximeter Read More
Heart rate divided by Systolic BP = Shock index
Mike Shertz MD/18D

Shock Index: a more sophisticated determinant of hypovolemic shock

  • Posted by Mike Shertz MD/18D
  • Categories (C) Circulation, MARCH

🕖 Reading Time, 4 minutes 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 …

Read more about Shock Index: a more sophisticated determinant of hypovolemic shock Read More
An Afghan is pulled from a burning SUV lays on a stretcher with obvious burns to his arms, face and ears
Mike Shertz MD/18D

Recommended EMS fluid resuscitation of burned casualties

  • Posted by Mike Shertz MD/18D
  • Categories (C) Circulation, Everything Else

🕖 Reading Time, 3 minutes Burns over 20% total body surface area (TBSA) result in increased capillary permeability and intravascular fluid deficits that are most severe at 24-hours post-burn. Cardiac output decreases rapidly post-burn. With correct fluid resuscitation, cardiac output …

Read more about Recommended EMS fluid resuscitation of burned casualties Read More
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