Complete 400 Questions with Detailed Verified Answers
1. Receptors Norepinephrine-Adrenergic (adrenergic
comes from the word adrenalin)
Alpha 1-all sympathetic target organs ex- cept
the heart-constrict the blood vessels and
dilation of pupils
Alpha 2-Presynaptic adrenergic nerve ter-
minal-inhibits the release of norepineph- rine
Beta 1-Heart and Kidneys (BETA 1-ONE
HEART)-increased heart rate and force of
contraction, release of renin
Beta 2-All sympathetic target organs-in- hibits
smooth muscle (BETA 2-TWO LUNGS)
2. Beta blockers/olol's Beta-Adrenergic Blockers
Metoprolol/Lopressor ENDING OLOL
Beta Blockers are use with heart failure,
hypertension, angina and with myocardial
infarctions.
Action = Blocks Beta-Receptors in the heart
causing...
Decreases = HR, force of contraction, Rate of
atrioventricular (AV) conduction
SE = Bradycardia, lethargy, GI disturbance,
congestive heart failure, decrease BP, de-
pression
The beta blockers stop sympathetic ner- vous
system stimulation of the heart. Does not allow
the heart rate and blood pressure to rise with
,stress thus lowering the oxygen
, demand of the heart. It is very heart pro-
tective!
Will slow the heart rate and lower the blood
pressure
Can have beta 2 blockage with larger dos- es-
will constrict the bronchioles-watch for clients
with known COPD, Asthma
Nursing Interventions
Check pulse-needs to be 60 or above Check
blood pressure-if hypotensive do not give
(Systolic below 100 is a good rule of thumb I
go by)
Monitor for sexual dysfunction-impotence for
men-a good reason for non-compli- ance
Drowsiness/Fatigue-operating heavy ma-
chinery, driving could put client at risk
Insomnia-
Contraindicated with Heart Blocks, Brady-
cardia, Worsening Heart Failure Increases
Hypoglycemic ettect of In- sulin-monitor
blood sugars and for hy- poglycemia, may
need to lower insulin dosage
Beta Blockers have to be weaned slow- ly
to prevent rebound hypertension and
tachycardia-if a client wants to stop his beta-
blocker they need to contract their physician
3. CCB,/calcium channel blockers
, Nifedipine/Adalat/Procardia/Norvasc-con- trols
blood vessels
Diltiazem/Cardizem
Verapamil/Calan/Isoptin/Verelan-controls heart
rate and blood vessels
Angina/Raynaud's/Vasospastic Angi-
na/Atrial Arrhythmia's
Blocks calcium channels in the myocardial and
vascular smooth muscles, decreases the
contraction of smooth muscle-relaxes the
arteries-vasodilation. Blocking of calci- um
channels in the SA and AV node-Slows
conduction through the SA and AV node.
Decreases the force of contraction slows heart
rate
Grapefruit juice may increase absorption of
nifedipine
Side Ettects: Relaxes smooth muscle and
cardiac muscle-
Headache
Dizziness-Take lying, sitting and standing
B/P, educate client to sit and stand slowly
Peripheral edema-assess for edema, mon- itor
for worsening (diuretic)
Flushing
Reflex tachycardia-monitor for elevated heart
rate (may need a BB)
Constipation-increase fibers and fluids (if