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
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)