IV drugs, Fluids And Antidotes Flashcards
Disadvantages of central IV line?
Higher risks of bleeding, inf and thromboembolism and they are more difficult to insert correctly
Advantages of central IV line?
Can deliver fluids/meds that are overly irritating to peripheral veins (e.g. some chemo drugs, PN, higher conc of K, vasopressor drugs, hypertonic soln)
Can contain multiple parallel compartments
What’s the concern with the use of Polyvinyl Chloride (PVC) infusion bags?
Leaching (1 substance pulled from another)
Sorption (1 substance pulls in another)
Which drugs are known to have Leaching issues?
Tacrolimus
Temsirolimus
Teniposide
Carbazitaxel
Docetaxel
Ixabepilone
Paclitaxel
(Tic tac toe, craving delicious irrestible pho)
Which drugs are known to have Sorption issues?
Amiodarone (for infusions greater than 2 hrs)
Carmustine
Lorazepam
Sufentanil
Thiopental
Regular human insulin
NTG
(ACLS TIN)
What type of IV fluid is preferred? Why?
Crystalloids
Less costly and safer
List fluids under Colloids
Albumin 5%, 25% (Albuked, Flexbumin)
Dextran (Dextran 40, Dextran 70)
Hydroxyethyl starch (Hespan, Hextend, Voluven)
Which fluid is more expensive with no evidence of superiority?
Albumin 5%, 25% (Albuked, Flexbumin)
Is 5% albumin isotonic, hypertonic, hypotonic?
Isotonic
Is 25% albumin isotonic, hypertonic, hypotonic?
Hypertonic
What’s used to dilute/ prepare 5% albumin.?
NS (not sterile water)
What’s the issue with Dextran (Dextran 40; 70)?
High risk for ADRs (urticaria, acute renal failure, increased bleeding time)
List types of Crystalloids (Less costly and safer)?
Lactated Ringers (LR)
Dextrose 5% (D5W)
NaCl 0.9% (NS, normal saline)
Whats gen. recommended as 1st line therapy in pts with hypovolemic shock (e.g. Hemorrhagic)?
Fluid resuscitation with Crystalliids (LR, D5W, NS)
or
Colloids (Albumin 5%, Dextran, Hydroxyethyl starch)
Why is vasopressors offered as 2nd line in hypovolemic shock?
Vasopressors are NOT effective w/o adequate fluid admin - at least 30mL/kg
What’s Sepsis?
Presence of an infection with Systemic Inflammatory Response Syndrome (SIRS)
What’s septic shock?
Dev of hypotension in a pt with sepsis
Moa of Inotropes?
Work by increasing contractility
MOA of Dobutamine?
Beta-agonist
Increases HR => increase CO
MOA of vasopressors?
Work via Vasoconstriction (think pressing down) => increase systemic vascular resistance (SVR)
What happens at medium doses of Dopamine?
Beta-1 receptors are stimulated => increased stoke vol => increased CO
What happens at high doses of Dopamine?
Alpha-1 receptors are stimulated => vasoconstriction => increased SVR
Moa of epinephrine?
Both alpha and beta agonist
Increases co and SVR
Moa of norepinephrine?
Both alpha and beta agonist, with greater alpha effects
List Inotropes and Vasopressors used in shock syndrome
DOBUTAMINE
Milrinone
DOPAMINE
EPINEPHRINE (Adrenalin)
NOREPINEPHRINE (Levophed)
Phenyephrine (Neo-Synephrine)
Vasopressin (Pitressin)
SEs of Dobutamine?
Hypotension
Premature ventricular beats
SEs of Milrinone?
Ventricula arrhythmias
Supraventricular arrhythmias
Milrinone and renal dysfunction?
Milrinone must be reduced for renal dysfxn
SEs of (dopamine, epinephrine, norepinephrine, phenylephrine)?
Arrhythmias
Tachycardia (esp with dopamine and epinephrine)
Bradycardia
Peripheral ischemia
Necrosis (gangrene)
What’s the strength of Epinephrine used for IV route?
0.1 mg/mL or 1:10,000
SEs of Vasopressin?
Arrhythmias
Necrosis (gangrene)
What’s Extravasation?
Leaking of IV meds into surrounding tissue, of vasopressors/Inotropes can cause tissue damage and necrosis
Howz Extravasation treated?
Phentolamine (an alpha-adrenergic blocker that antagonizes the effects of vassopressors)
Dilute 5-10 mg in NS and give SC to infiltrated area
List agents used for ICU sedation and analgesia
Opioids (Morphine, Hydomorphone, Fentanyl)
BZD (Midazolam, Lorazepam)
Antipsychotics (Haloperidol, Quetiapine, Risperidone)
Hypnotics (Propofol, Dexmedetomidine)
What’s the preferred drug for achieving rapid analgesia?
Fentanyl
What’s the preferred drug for rapid sedation?
BZD, Propofol and Dexmedetomidine
Care in Propofol admin?
Limit dose and duration or Propofol due to Propofol-related infusion syndrome, which can result in cardiac arrhythmias and death
Sedation for pts with delirium?
Dexmedetomidine (not BZD)
List agents used for ICU sedation and agitation
Lorazepam (Ativan; Lorazepam Intensol)
Midazolam
Propofol (Diprivan)
Dexmedetomidine (Precedex)
Morphine
Fentanyl
Hydromorphone (Dilaudid)
Remifentanil (Ultiva)
Haloperidol (Haldol)
SE of Lorazepam (Ativan, Lorazepam Intensol)?
Respiratory depression
Oversedation
Hypotension
Propylene glycol poisoning at high doses and prolonged infusions (look for metabolic acidosis and renal insufficiency)
CI to Midazolam?
Concurrent use of potent CYP3A4 inihibitors
SE of Midazolam?
Respiratory depression
Apnea
Oversedation
Hypotension
Duration of Midazolam use?
Short-term sedation (< 48 hrs)
Brand name of Propofol?
Diprivan
SEs of Propofol (Diprivan)?
Hypotension
Apnea
Hypertriglyceridemia
Green urine
Propofol-related infusion syndrome (PRIS -rare, but can be fatal)
What should be monitored if on Propofol (Diprivan) longer than 2 days?
TGs
Why’s strict aseptic technique recommended when handling Propofol (Diprivan)?
Due to potential for bacterial growth
Size of filter required for Propofol (Diprivan) admin?
Don’t use < 5 microns
How’s Propofol (Diprivan) formulated?
In a lipid emulsion (provides 1.1 kcal/mL)
Brand name of Dexmedetomidine?
Precedex
(Alpha2-adrenergic agonist
SEs of Dexmedetomidine (Precedex)?
Transient HTN during loading dose (may need to reduce infusion rate)
Hypotension
Bradycardia
Dry mouth
Nause
Howz Dexmedetomidine (Precedex) mixed?
With NS ONLY
Max duration of infusion for Dexmedetomidine (Precedex)?
Should not exceed 24 hrs per manufacturers labeling
SEs of Morphine?
Respiratory depression
Hypotension
Over sedation
Bradycardia
Pruritus
Xerostomia
Constipation
T/F? Morphone has an active metabolite?
T
Morphine-6-glucuronide