Critically Ill & Anticoagulantion Flashcards
Findings:
Warmth, redness, pain, inflammation, and induration along course of vein. Appears as palpable cord, Edema Rare
Induration of muscle, venous distention, edema, deep reddish color
Superficial vein Thrombosis/ Venous Thrombosis
Warmth, redness, pain, inflammation, and induration along course of vein. Appears as palpable cord, Edema Rare (Superficial vein Thrombosis)
Induration of muscle, venous distention, edema, deep reddish color (Venous Thrombosis)
DVT happen 3 ways
Venous statis: Not moving
Endothelial damage: Release clotting factors / Activation of platelets
Blood hypercoagulability: imbalance in clotting mechanism, increase in fibrin production
Biggest concern of DVT
PE
Pulmonary Embolism
Obstruction of Pulmonary Vessel by particulate matter, most often a clot
Fat & air emboli
Amniotic fluid
Tumors
Can all cause
PE
Long bone being broken
Femur, Pelvis, Sternum
Can cause
Fat emboli -> PE
How can an air emboli happen
Improper IV med administration
Thrombus from a DVT breaks loose & lodges in a pulmonary artery
Describes
PE
Audible S³ or S⁴ heart sound
Petechiae
Hemoptysis
Syncope
Tachy
Hypotension
SUDDEN
Manifestaciones of PE
PE
ABG
Describe
Start: Respitory Alkalosis
End: Metabolic Acidosis
V/Q Scan does….
Illustrates how well they are perfusion & ventilation
Diagnose a PE
It measures the airflow (ventilation) and blood flow (perfusion) in your lungs.
You breathe in and are injected with radioactive material while a provider takes pictures of your lungs
Do you want the clot to break apart in DTV
No this will cause PE
How does Heparin disolve a DVT
It Doesn’t
Stops it from getting bigger
First thing to do in drug therapy for PE
Clotting study drawn as a baseline
5000 - 10000 U Heparin given via IVP
followed by a drip
PTT: Kept between ____
50 - 70 seconds
Coumadin (Warfarin) work…
Warfarin blocks enzyme that uses vitamin K to make clotting factors.
Ability of blood to clot is reduced.
What is PT
Normal
Normal on anticoagulants
Prothrombin time (PT)
Time it takes for (plasma) in blood to clot.
Normal 10–13 seconds
Warfarin (Coumadin) multiply by 1.5 - 2.5
Normally an INR of _____ is normal
Warfarin INR range of_____
<1.1
Warfarin 2 - 3
A normal partial thromboplastin time
(PTT) is _____
Heparin PTT
25–35 seconds
50 - 70 seconds
INR stands for…
International Normalized Ratio
How long it takes blood to clot
Measures how long it takes for a blood clot to form based on a protein called prothrombin. PT detects abnormalities in the extrinsic and common pathways of the coagulation cascade.
Measures how blood clots within a blood vessel (intrinsic pathway). PTT detects abnormalities in the intrinsic pathway
PT or PTT
PT
Measures how long it takes for a blood clot to form based on a protein called prothrombin. PT detects abnormalities in the extrinsic and common pathways of the coagulation cascade.
PTT
Measures how blood clots within a blood vessel (intrinsic pathway). PTT detects abnormalities in the intrinsic pathway
Which type of blood clot is likely to cause a stroke
Left Atrium of the Heart
How to handle clot once it is formed
Start (this med)
Then
Bridge (this med)
Heprin (DVT & PE) / (MI & Unstable Angina)
Bridge (Coumadin aka Warfarin)
When treating blood clots
First give (Heparin)
Bridge with (Coumadin aka Warfarin)
(Coumadin aka Warfarin) is used to treat this condition
Coumadin aka Warfarin treats Atrial Fibrillation
Epidural/spinal med administración
Uncontrolled bleeding
Severe thrombocytopenia / HIT (Heparin-Induced Thrombocytopenia)
Hemorrhagic Stroke
Are what?
Contraindications for Heparin
4 contraindications for Unfractionated heparin
Epidural/spinal med administración
Uncontrolled bleeding
Severe thrombocytopenia / HIT (Heparin-Induced Thrombocytopenia)
Hemorrhagic Stroke
Dosing heparin
___ units / kg/ IV bolus
Then
___ units/ kg/hr adjusted by PTT results
80 U / kg / IV bolus
Then
18 U/kg/ hr adjusted by PTT results
Labs
PTT / INR Baseline
Then
PTT __ hrs post-bolus or __ hrs post-rate change
PTT 8 hrs post-bolus or 6 hrs post-rate change
Once PTT is stabilized
How often
Daily
Dosing of HEPARIN
CBC x __ days
3
PT (INR) associated with Coumadin us thus pathway…
APTT associated with heparin is associated with…
PT (Extrinsic) Inury outside blood vessel
APTT (Intrinsic) Injury inside blood vessel
Dosing of heparin
Treatment ____ days with/without starting warfarin therapy
3 - 5 days
Heparin
Rapid onset
Half-life…
1.5 hrs
Protamine Sulfate is….
Reversal agent for heparin
Heparin doesn’t lyses clots
How is it adminster
IV or SQ
What is the Prophylaxis amount of heparin
How often check PTT in prophylactic treatment?
5000 - 10000 U, SQ every 8 - 12 hrs
No need to check PTT
IV heparin always,always requires …
IV infusion pump
Guardrail medication
What is required for starting a new bag or changing rate on heparin
(Safety)
2nd RN
Low molecular weight heparin aka
Enoxaparin (Lovenox)
Half life of
Low molecular weight heparin LMWH
Aka enoxaparin (Lovenox)
3-6 hrs
Enoxaparin (Lovenox) LMWH
Indications (3)
Treatment VTE
DVT Prophylaxis
Unstable Angina
Dosing of LMWH aka Enoxaparin (Lovenox)
1mg/ kg every 12 hrs for….
40 mg. SQ every 24 hrs for….
30 mg SQ every 24 hrs for….
1mg/ kg every 12 hrs for treatment
40 mg. SQ every 24 hrs for Prophylaxis
30 mg SQ every 24 hrs if CrCl <30 ml. min
Creatine Clearance