NUR 325 Final Flashcards
Drugs (166 cards)
what is the MOA of Heparin?
Prevents clotting by activating antithrombin
(Indirectly inactivates thrombin and factor Xa)
**Intrinsic Pathway
Indications for Heparin
Conditions necessitating PROMPT anticoagulation activity (evolving stroke, PE, massive DVT)
Adjunct for pts having open heart surgery
Low dose therapy for prophylaxis against post-op DVT
Treat disseminated intravascular coagulation (DIC)
Adverse Reactions of Heparin
Bleeding
Hematoma
Anemia
Thrombocytopenia
What should you monitor after giving Heparin?
BLEEDING!!
Vital signs, bruising, petechiae, hematomas, black tarry stools
What is Heparin-Induced Thrombocytopenia?
Low platelet count and increased development of thrombi
*Caused by antibody development
Nursing Considerations for Heparin
Only given parenteral (IV or SQ)
Use may be issue if pt follows kosher or Halal diets (derived from lung and intestines of pigs)
Use cautiously in pts with spinal or epidural anesthesia
Is Heparin a HIGH RISK med?
YES!!
Must double check with other RN prior to rate changes and boluses
What is the Antidote for Heparin?
Protamine SULFATE
What is the MOA of Enoxaparin (Lovenox)?
ONLY inactivates factor Xa!!
(NOT THROMBIN)
Slower onset, but LASTS LONGER than Heparin
What are the indications for enoxaparin?
Given prophylaxis and treatment
*CAN be given at HOME
What are the major adverse reactions of enoxaparin?
BLEEDING
Thrombocytopenia
HIT (heparin-induced thrombocytopenia)
Nursing Consideration for enoxaparin
Labs NOT necessary
Use cautiously in pts with spinal or epidural anesthesia
DO NOT GIVE WITH HEPARIN
DON’T give with any other anticoags EXCEPT oral Warfarin when treating PE or DVT
SQ INJECTION ONLY (pre-filled syringes - LEAVE AIR BUBBLE in plunger)
ROTATE SITES - DO NOT RUB SITE AFTER INJECTION
BLACK BOX WARNING:
enoxaparin
Potential spinal hematoma if pt has epidural catheter
Antidote for enoxaparin?
Protamine
What is the MOA of Warfarin?
VITAMIN K inhibitor
Prevents the synthesis of 4 coag factors (7, 9, 10, and prothrombin (2))
Indications for Warfarin?
Prevention of VTE/DVT/PE
Thrombotic events for pts with atrial fibrillation, or heart valves
Reduce recurrence of TIA or MI
Adverse reactions of Warfarin?
BLEEDING
Lethargy
Muscle pain
Purple toes
Nursing considerations for Warfarin
TERATOGENIC!! (Even breastfeeding)
ONLY GIVEN PO (once a day - 5pm)
– onset not until 24 hours!
MONITOR and TEACH for S/S of bleeding
HOLD before surgeries
Many drug/food interactions
What should we teach pts on Warfarin?
Wear medic alert bracelet
Use soft bristle toothbrush
Use electric toothbrush/razor
Avoid alcohol
What labs do you need to monitor when giving Warfarin?
PT - Prothrombin Time
INR - International Normalized Ratio
Therapeutic range = 2-3.5
**MONITOR MONTHLY
Antidote for Warfarin?
Vitamin K (IV)
(if that doesn’t work, give fresh frozen plasma or whole blood)
What is the MOA of apixaban and rivaroxaban?
Direct inhibitor of Factor Xa
Indications for apixaban and rivaroxaban?
Prevents strokes in pts with afib, post-op thromboprophylaxis
Treat DVT/PE
Adverse reactions for apixaban and rivaroxaban?
Bleeding
Hematoma
Dizziness and rash
GI distress
Peripheral edema