Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
26 Cards in this Set
- Front
- Back
|
Alpha 1 Receptors control
|
Venous constriction
|
|
|
Beta 1 receptors control
|
The heart and the BIG 4
|
|
|
Alpha 2 receptors control
|
norepinephrine
|
|
|
Beta 2 recptors control
|
bronchiole dilation
arteriole dilation |
|
|
Sympathetic system aka
|
adrenergic
|
|
|
parasympathetic system aka
|
cholinergic
|
|
|
sympathetic divisions =
|
adrenergic
dopaminergic |
|
|
parasympathetic divisions=
|
muscanergic
nicotinic |
|
|
one small box on EKG = how many seconds?
|
0.04
|
|
|
QRS complex represents ?
|
ventricular depolarization
|
|
|
T wave represents?
|
ventricular REpolarization
|
|
|
Information in one single lead shows waht information?
|
Rate & Regularity
Time to conduct an impulse |
|
|
P wave represents what?
|
Atrial depolarization
|
|
|
How long is the P-R interval?
|
.012-.020 seconds
|
|
|
How long is the QRS interval?
|
less than (<) .012 seconds
|
|
|
A spectrum of clinical presentation of ACS include=
|
Angina & Heart attack (STEMI & NON STEMI)
|
|
|
Classical anginal chest pain
|
central anterior chest
Dull,fullness, pressure, tightness, crushing radiates to arms neck, back |
|
|
Clinical prsentation of ACS=
|
classical anginal chest pain
atypical chest pain anginal equivalents |
|
|
Anginal equivalents=
|
dyspnea
diabetes General weakness Palpatations Syncope |
|
|
Atypical presentations often seen in:
|
females
diabetics elderly |
|
|
Risk factors of ACS:
|
age
sedentary obesity Family hx of CAD smoking hypertension diabetes Stress |
|
|
Therapuetic effects of Nitro on ACS:
|
Dilates conduit arteries
Antognizes vasocnspasm Improves collateral circulation Inhibits venous return Reduces myocardial wall tension |
|
|
Definition of angina:
|
chest pain or discomfort that occurs when an area of the heart muscle does not get enough oxygen-rich blood
|
|
|
AMI occurs when:
|
arterial blood supply to the heart is occluded, causing myocardium to die.
|
|
|
Long term affects of an ineffective pump=
|
heart failure
arrythmias |
|
|
results of decreased heart function:
|
slower rate
less conductivity less ejection fracture |
