Pharm 1: Cardiac, Peds Flashcards
Sodium channel blockers-Action
block Na entry into cell during depolarization
stabilize cardiac membranes
results in decrease in conduction speed and myocardial excitability
Treat A and V arrythmias
Na channel blockers-Examples
quinidine sulfate/gluconate procainamide (Procar) disopyramide (Norpace) lidocaine phenytoin (DIlantin) propafenone (Rythmol)
Most common AE of Quinidine
Most dangerous AE
Most common: diarrhea
Most dangerous: Lengthening QT interval, puts pt at r/f V-tach
AE of procainamide
arthralgia and skin rashes
Common AEs of antidysrhythmics
GI upset: n/v/d
Dzns, HA, blurred vision, tinnitus
CI of disopyramide (Norpace)
poor LV function
ACLS 2nd choice/SJH 1st choice for treating V-tach
lidocaine
lidocaine admin
IM/IV Bolus dose + Maintenance dose (1-4 mg/min)
Na channel blocker used to treat arrythmias d/t Digoxin toxicity
phenytoin (Dilantin)
AE of phenytoin
HoTN, Bradycardia
Thrombophlebitis
gingival hyperplasia
Na channel blockers used only for severe refractory life-threatening Ventricular arrythmias, can by proarrhythmic
propafenone (Rythmol)
flecainide (Tambocor)
Cardioselective Beta Blockers
metoprolol
atenolol
nonselective BBs
propanolol
nadolol
labetelolol
timolol
BBs used to treat these arrythmias
Afib
Aflutter
paroxysmal SVT
CI of BBs
Asthma (caution with cardioselectives)
use caution with CHF pt (low dose, increase slowly)
AE of BBs
Bradycardia
HoTN
Dzns, fatigue
Heart block
BB action
block SNS stimulation of the heart:
decrease HR, contractility, BP, automaticity, and myocardial O2 demand
K channel blockers-action and examples
prolong the action potential and refractory period of the cardiac cycle–prolong repolarization
Amiodorone
CC areas only:
bretylium
ibutilide
dofetilide (Toursad’s risk)
use of this type of antidysrhythmic with warfarin increases the risk of bleeding
K channel blockers
K channel blockers-admin
PO, IV gtt
loading dose, maintenance dose
Most common AE of amiodorone
corneal microdeposits causing
visual halos
photophobia
dry eyes
most dangerous AE of amiodorone
Pulmonary toxicity with alveolar damage, leads to pulmonary fibrosis
CCBs-Action and examples
Slow conduction and prolong refractory period
verapamil
diltiazem
Indication of CCbs
Afib, Aflutter, SVT
tachycardias at SA and AV nodes
AE of CCBs
**Constipation (can be severe) Bradycardia Heart block HoTN, Dzns Dyspnea
antidysrhythmic med can be used for “chemical cardioversion”
adenosine
adenosine admin
give RAPID IVP due to very short half life
adenosine action
stops heart so SA node can pick up, converts SVT to SR
Adrenergic agonists-action
SNS stimulants, goal is to increase perfusion
Cause: vasoconstriction, increased HR, bronchodilation, pupil dilation, and inhibit GI activity
all adrenergic agonists are IV in CC areas except
dobutamine
adrenergic agonist, endogenous catecholamine that stimulates alpha and beta receptors and can increase BG levels
epinephrine
indications of epinephrine
Emergency ACLS protocols
acute asthma
anaphylaxis
AE of epinephrine
vasoconstriction leading to increased BP
adrenergic agonist that primarily stimulates alpha receptors, is a potent vasoconstrictor
norepinephrine (Levophed)
indications of norepinephrine
Shock, HoTN
isoproterenol action
adrenergic agonist
stimulates Beta receptors causing bronchodilation, cardiac stimulation
indications for isoproterenol
heart block
septic shock
Adrenergic agonist with dose-dependent action
dopamine
low dose-vasodilation of renal vessels, enhanced renal flow
high dose- potent peripheral vasoconstriction
dobutamine action
stimulates Beta-1 receptors to increase contractility
dobutamine admin
through PIV or CVAD
**2nd IV site is needed
Venous irritating, danger of tissue damage if infiltration occurs.
DO NOT stop med abruptly
indications for dobutamine
HF
Cardiac Post ops (r/f CHF)
major AE/danger of dobutamine
Arrythmias
IV gtt Dopa-1 agonist for Hypertensive crisis
fenoldopam
alpha adreneric agonist, given IV short term to increase BP
phenylephrine
Vaccinations at 2, 4, and 6 mos (6)
Hep B DTap Hib IPV Prevnar RV
Vaccine at birth (1)
Hep B
Vaccines around 1 year (12-15 mos) (4)
Hib
Prevnar
MMR
Varicella
Hep A vaccine admin
2 doses, 6 mos apart
12-23 mos
DTap schedule
2,4,6, 15-18, 4-6 yr
then:TDap schedule
Vaccines before entering kindergarten (4-6 yr) (4)
DTap
MMR
Varicella
IPV
Vaccines at 11-12 yr (2)
HPV (3 doses)
Menactra (MCV-4)
Vaccine at 16-18 yr
Menactra
Vaccines CI in severe immunodeficiency and pregnancy
MMR
Varicella (can vaccinate child, just cover any pox)
Zoster (HCV)
Live vaccines
intranasal flu
RV
MMR
Varicella
SubQ vaccines
MMR
Varicella
oral vaccine
RV
Prevnar (PCV-13) vaccine is for
Pneumoccoal disease
Strep pneumo
pneumonia, OM, sepsis, meningitis
Menactra (MCV-4) vaccine is for
meningococcus
bacterial meningitis
TDap schedule
11-12 years
Boost every 10 years with Td
Also: any time needed over 7 yrs for catch up use TDap instead of DTap
Give TDap to pregnant teens during each pregnancy
CI to TDap or DTap
encephalopathy not attributable to an identifiable cause within 7d of previous dose
when to start flu vaccine
6 mos
no live intranasal flu to
under 2 years old
pregnant
chronic disease state
who else gets HepA
travel
teen males who have sex with other males
illicit drug use
close contact with international adoptee
only injection site for up to 1 year old
Vastus lateralis
AE of lidocaine
CNS effects: confusion, dizziness, drowsiness, tremors, slurred speech
most effective to reduce LDL
statins
get these tests before statin use begins
LFTs (and periodically)
kidney function
LDL/HDL levels
CIs of statins
Liver dysfunction
caution with coumadin
avoid grapefruit
avoid grapefruit with these meds
statins
concurrent use with coumadin can increase risk of bleeding
statins and K channel blockers
cholestyramine (Questran) med type and admin
Bile Acid Sequestrant
dissolve powder in 120 mL; give other meds 1 hour before or 4 hours after
activate lipoprotein lipase enzyme that breaks down cholesterol; inhibits TGI synthesis in liver
Fibric Acid Derivatives
AE of nicotinic acid use to decrease LDL and increase HDL
Flushing and warmth of face
this med can be taken with statins to reduce cholesterol
cholesterol-absorption inhibitor=
ezetimbe (Zetia)
Vytorin=Zetia+Zocor
this decreases the amount of cholesterol stored in the body
exercise
major AE of oral steroids
Mood Swings
also hunger; take with food to protect GI lining
Don’t stop abruptly
Anti-RSV Monoclonal Antibody given to high risk infants (preemies, severe CP issues
Synagis
passive immunity-give once per month
no cough and cold products for <2 years old because
don’t want to mask infection, sepsis can develop quickly; proof of efficacy lacking
and cannot articulate side effects which can be dangerous:
tachycardia
arrythmias
sedation
Risk of ARF in dehydrated child who takes
ibuprofen
med errors in adults vs. kids
equal freqency
3x higher rate of potentially harmful outcomes in kids
newborns are vulnerable to CNS toxicity from meds d/t
immature BBB
Glucocorticoids are only give short term to kids to avoid
suppression of growth
Can be used with Coumadin in prosthetic heart valve pt
Dipyridamole (Persantine)
Antiplt
IM/SQ absorption may be decreased in kids d/t
immature peripheral circulation and heat regulation
Therapeutic aPTT
Around 60
1.5-2x normal
Indications for IV heparin
Use when immediate effect needed…evolving CVA,PE,DVT
Indications for SQ Heparin
Immobility, bed rest, traction
Heparin AE
Bleeding Anemia Fever Edema Low plts
Warfarin indications
Prevent and treat DVT, PE, Afib emboli, emboli due to prosthetic heart valves
Warfarin dose determines by
pT/INR from 3 days ago
Anticoagulants action and types
Inhibit clotting factors
IV/SQ heparin, lovenox
Oral (inhibit Vit K) warfarin
Indications for anti platelet meds
Decrease plts aggregation that causes most arterial thrombi
Prevent AMI, Reinfarction, CVA, Int Claudication