Cardic 3 Flashcards
Calcium chloride
Drug classification
Mineral
Electrolyte
Calcium chloride
Mechanism of action
Replacement of elemental calcium -> dissociates rapidly to Ca2+ and Cl- ions -> positive inotropy and chronotropy
Calcium chloride
Pharmacokinetics
Onset: immediate
Peak: unknown
Duration: varies
Half-life: N/a
Calcium chloride
Indications / field use
Acute hyperkalemia
Ca2+ channel blocker toxicity
Crush syndrome
Abdominal muscle spam from brown spider or man of war jellyfish
Cardiac arrest secondary to suspected hyperkalemia (known dialysis pt, etc)
Calcium chloride
Contraindications
Hypercalcemia
Pt taking digoxin
Calcium chloride
Side effects / adverse reactions
Bad dysrhythmias need some calcium
Bradycardia,Dysrhythmias, Nausea and vomiting, Syncope, Cardiac arrest
Calcium chloride
Dose (Adult)
1g slow IV/IO over 5 minutes
Calcium chloride
Dose (pedi)
20mg/kg slow IV/IO
Calcium chloride
Precautions
Can cause tissue necrosis at injection side; ensure patent IV line
Calcium chloride
Drug-Drug Interactions
Forms PPT w/ NaHCO3, flush tubing between administration
Digitalis toxicity when administered to pt currently taking digitalis / digoxin - inhibits Ca2+ channels causing “stone heart”
Calcium Gluconate
Drug classification
Mineral
Electrolyte
Calcium Gluconate
Mechanism of action
Replacement of elemental calcium -> dissociates rapidly to Ca2+ and gluconate ions -> positive inotropy and chronotropy
Calcium Gluconate
Pharmacokinetics
Onset : immediate
Peak : unknown
Duration : varies
Half-life : N/a
Calcium Gluconate
Indications / field use
Acute hyperkalemia
Ca2+ channel blocker toxicity
Cardiac arrest secondary to suspected hyperkalemia (known dialysis pt, etc)
Calcium Gluconate
Side effects / adverse reactions
Bad dysrhythmias need some calcium
Bradycardia, dysrhythmias, nausea and vomiting, syncope, cardiac arrest
Calcium Gluconate
Dose (adult)
2g slow IV/IO over 5 minutes
Calcium Gluconate
Dose (pedi)
60mg/kg slow IV/IO over 5 minutes
Calcium Gluconate
Precautions
Can cause tissue necrosis at injection site, ensure patent IV line
Calcium Gluconate
Drug-Drug interactions
Forms PPT w/ NaHCO3, flush tubing between administration
Digitalis toxicity when administered to pt currently taking digitalis/digoxin - inhibits Ca2+ channels causing “stone heart”
Dopamine HCL (Intropin) Drug classification
Sympathomimetic
Sympathetic agonist
Catecholamine
Dopamine HCL (Intropin) Mechanism of action
Alpha 1 agonist -> second messenger release of Ca2+ in VSMC -> peripheral vasoconstriction -> increased SVR -> increased BP
Beta 1 agonist -> increased intracellular Ca2+ in cardiac cells -> positive inotropy, chronotropy, dromotropy
the mechanism for this drug is dose dependent
Dopamine HCL (Intropin) Pharmacokinetics
Onset : <5 minutes
Peak : 5-8 minutes
Duration : <10 minutes
Half-life : 2 minutes
Dopamine HCL (Intropin) Indications / field use
Cardiogenic shock
Symptomatic bradycardia
Septic shock following fluid resuscitation
Dopamine HCL (Intropin) Contraindications
Uncorrected hypovolemia (if profoundly hypotensive, may give IV fluids concurrently)
Dopamine HCL (Intropin) Side effects / adverse reactions
This Drug Does Not Help Neither Chest pain or Extravasated necrosis
Tachycardia, Dyspnea, Dysrhythmias (a-fib, PVC’s), HA, Nausea and vomiting, Chest pain, Extravasated necrosis
Dopamine HCL (Intropin) Dose (adult)
2-5mcg/kg/min IV/IO infusion (low dose) causes increased blood flow to mesentery renal (GUT)
5-10mcg/kg/min IV/IO infusion (medium dose) stimulates beta effects
10-20mcg/kg/min IV/IO infusion (high dose) stimulates alpha effects
Dopamine HCL (Intropin) Dose (pedi)
2-20mcg/kg/min IV/IO infusion
Dopamine HCL (Intropin) Precautions
Must be kept out of direct sunlight