Week 1 ILS (lecture) Flashcards
Mediterannean diet
- favorable effects
- Incease HSL, decrease LDL
- Vasodilation
- Antioxidant
- decrease in HTN
DASH diet
- what is it?
- effects
- balanced between grains, fruits, veggies, lean meat/fish, dairy. low in Na
- Reduce BP
Olive oil
- contains
- effect
- high levels on mono-unsaturated fat
- decrease in BP
Cocoa
- high in
- kind
- effect
- flavanols
- 70% or more cocoa
- decrease in BP
Red wine
- high in?
- effect
- polyphenol
- help BP
Whole grains
- how?
- effect?
- form?
- fiber
- lower risk of cardiovascular events
- needs to be intact grain, not pulverized
Fish
- high in
- effect
- types
- omega 3
- more flexible fatty acid in he membrane means that there will be greater elasticity in blood vessels
- Salmon, Maceral, Anchovies, Sardines, Herring
Nuts
- why?
- how much?
- high in fiber and omega 9
- one large handful every other day
Flax seeds
- why?
- high in omega 3 and fiber
Fiber
- effect?
- reduction in BP
B vitamins
- what is it?
- what does it do?
- Niacin
- reduce homocysteine which reduce hypercoagulable state
D vitamins
- effect
- deficiency
- helpful for renal control and blood pressure and has direct effect on myocardium and arteries themselves
- Vitamin D deficiency increases cardiovascular risk by 62%
Vitamin E
- effect
- antioxidant
Magnesium
- how?
- deficiency?
- sources
- relaxes muscle and also blood vessels and does the opposite of calcium
- will cause high BP
- pumpkin seeds, coffee, quinoa, spinach, beans
Inorganic Nitrates
- how?
- high in nitric oxide which is a vaso-dilator.
Co Q 10
- how?
- effect?
- important in mito function and has antioxidant properties
- used for hypertension and heart failure
How to look at rhythm
- each P wave should be followed by QRS and each QRS should have P wave in front
- Is p wave upright in leads I, II, III
- Is PR interval 3-5 small boxes wide?
How to tell if rate is normal
- fast method
- calculator method
- marker method
- Look for 3-5 big boxes from R to R; 3: 100 bpm, 4: 75 bpm, 5: 60 bpm
- less than 3 big boxes between R to R
- Variable amount of boxes between each R to R
Calculator method
- count small boxes between two R to R intervals
- 1500/ the amount of small boxes
- can only be used if R to R is constant and not variable
Marker method
- use big big boxes( 5 boxes)
- 3 big big boxes = 15 big boxes
- Figure out how many big big boxes the ECG has (6 big boxes vs 10 big boxes) then count the amount of the QRS complexes in those seconda and multiply that number by however much you would need to multiply the amount of seconds to get 60 seconds
Axis
- what is it?
- what leads to look at?
- normal?
- abnormal Left vs Right vs both
- how the heart lays in the chest
- I and aVF
- both should be positive deflections (upward)
- I up and aVR down = Left axis deviation
- I down and aVR up = Right axis deviation
- I down and aVR down = Extreme right axis deviation
Interval and segments
- looking at
- normals
- RR interval:
- P wave:
- PR interval:
- PR segment:
- QRS complex:
- ST segment:
- T wave:
- ST interval:
- QT interval:
- intervals and segments
- RR interval: 0.6-1.2 seconds
- P wave: 80 milliseconds; 2 small boxes
- PR interval: 120-200 milliseconds; 3-5 small boxes
- PR segment: 50-120 milliseconds; 1.5 to 3 small boxes
- QRS complex: 80-100 milliseconds; 2 to 2.5 small boxes
- ST segment: 80-120 milliseconds
- T wave: 160 milliseconds; 4 small boxes
- ST interval: 320 milliseconds; 8 small boxes
- QT interval: 420; 10 to 10.5 small boxes
Complexes/Waves
- looking for
- atrial hypertrophy
- ventricular hypertrophy
- places for hypertophy
- Lead v1- left atrial enlargement, Lead II right atrial enlargement
- Lead V1; positive inflection means right ventricular hypertrophy; would normally expect a negative inflection
1 sxs
Right atrial enlargement; right is lead II, left is Lead V1
2 sxs
Left atrial enlargement; right is lead II, left is Lead V1
Inverted T wave
- means
-cardiac ischemia
ST segment depression
- meaning
- subendocardial infarction (early stages
ST elevation
- meaning
- MI
Really long R to S
- evidence of previous infarction
Leads that correspond to specific area of heart
- anterolateral
- interior
- anterior septal
- apical
- I, aVL, V5, V6
- II, III, aVF
- V1, V2
- V3, V4