8 - Mattu - HypoKalemia

Question 1

HypoKalemia

Answer 1

https://www.youtube.com/watch?v=5P-6hy2owJE

Question 2

The Mattu “sign” of HypoK+ refers to potassium’s under ____ mEq/dL.

Answer 2

3.0

Question 3

The following photo is indicative what pathophysiology on 12-lead?

Answer 3

HypoK⁺ (“Camel Humps”)

Question 4

As K⁺ falls, so does the _____ on 12-Lead EKG.

Answer 4

T-wave

Question 5

You are called to a 67 YO male patient who presents with complaing of AMS. Describe the findings of the following 12-lead.

Answer 5

Rate: Appx 65 BPM

Regularity: `Regular

PRI: 0.08 s

QRS: Normal ( <120 ms)

QT interval: prolonged QT interval

STE/STD: ST depression

• Suspect hypoK⁺ (pt’s K⁺ was 1.7 mEq/dL in ED)

Question 6

Hypokalemia is often found alongside what other electrolyte abnormality?

Answer 6

Hypomagnesemia (can cause malignant ventricular arrhytmias)

Question 7

Hypokalemia 12-lead changes can be mistaken for _____.

Answer 7

Wellen’s.

*** Note: The changes to ST segment are “reverse Wellen’s” in hypoK⁺)

Question 8

Wellen’s or HypoK?

Answer 8

Wellen’s

Up, then down.

Question 9

Wellen’s or HypoK⁺?

Answer 9

HypoK⁺

“Roller Coaster” - down, then up!!!!

Question 10

Dx?

Answer 10

HypoK+

Question 11

Dx?

Answer 11

HypoK+