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Flashcards in Newman/Nace Deck (38)
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29

Describe and identify.

- Sinus tachycardia

- More narrow EKG waves with a faster heart rate (greater than 100 bmp) – not pathologic

- This is limited to 150 bpm usually; but that’s pretty darn fast don’t you think?

- Sympathetic stimulation will produce this

31

Who is affected by essential HTN?

- Identifiable behaviors contribute: increased salt intake, alcohol, obesity 

- Obesity estimated to account for up to 60% of new cases (sleep apnea may contribute) 

- More prevalent in AA, and also starts at earlier age, tends to be more severe, and causes more target organ damage, premature disability, and death 

32

What is the most common preventable cause of death in developed countries?

HTN

33

How is the dx of aortic stenosis best made?

- History and physical 

- Echocardiography 

- Cardiac catheterization 

34

Describe and identify. 

- 3rd degree (complete) heart block

- Ominous rhythm with very low heart rate (around 30 bpm)

- Can progress to ventricular stand still

- Some characteristic EKG findings: P- waves without QRS (“lonely P-wave”), non-regular P-R intervals, prolonged QRS

36

Describe and identify.

- Ventricular fibrillation

- Muted random unrecognizable waves (0 bmp) with no cardiac output

- Primary rescue = AED shock

- Secondary prevention = ICD

37

What is this showing?

Aortic stenosis

38

Describe and identify.

- Atrial flutter

- Due to establishment of a reentry circuit within atria (flutter rate of around 250-300 bpm)

- Characteristic  “sawtooth baseline” on the EKG

- Typically normal QRS complexes either at every 2nd or 4th impulse