Administration of t-PA (Tissue Plasminogen Activator) for acute stroke
The Problem:
Criteria Checklist for Administration of t-PA (Tissue Plasminogen Activator) for acute stroke

NO

YES "Inclusion Criteria – SHOULD BE ALL "YES
   

Clinical Diagnosis of ischemic stroke causing a measurable deficit defined as impairment of language, motor function, cognition, 0vision

   

Time of onset of stroke well established to be less than 3 hours (180 minutes)

   

CT negative for intracranial hemorrhage

   

Age greater or equal to 18 years

   

Documented discussion of risks and benefits of treatment with patient and/or designated decision-maker

   

Discussed with Neurology and consensus exists for thrombolysis

YES

NO

Exclusion Criteria -- SHOULD BE ALL "NO"

   

Only minor or rapidly improving stroke symptoms

   

A profound stroke with obtundation, fixed eye deviation and complete hemiplegia

   

Clinical presentation consistent with subarachnoid hemorrhage even if CT normal

   

BP greater than 185 / 110 mmHg

   

Use of anticoagulants in previous 48 hours and a prolonged PTT or an INR greater than 1.5

   

Platelet count less than 100,000

   

Active internal bleeding

   

Gastrointestinal or urinary bleeding within 21 days

   

Major surgery within 14 days

   

Blood, serum or plasma Blood Glucose less than 3 or greater than 22 mmol/L

   

Seizures within 6 hours of onset of stroke

   

Myocardial infarction within 3 weeks

   

Pregnant or lactating women

   

Within 3 months of any intracranial surgery, serious head trauma or previous stroke

   

History of intracranial hemorrhage

   

Known arteriovenous malformation or aneurysm

   

Arterial puncture at a non-compressible site

   

Lumbar puncture within 7 days

   

Acute pericarditis

Phase II Orders (Stroke Thrombolytic Therapy)

1.

Inclusion / Exclusion criteria completed and signed

2.

Second IV access: saline lock with saline flush in same arm.

3

Cardiac monitor during infusion of tPA

4.

Total dose of tPA: __________ mg over 1 minute as 10% bolus, followed immediately by ___________ mg IV continuous infusion over 60 minutes, for a total of _____________ mgs

DOSE CALCULATIONS: Choose the smallest of the following:

a] Patient’s weight in kg _________x 0.9 mg/kg _________mg.

OR

b] Maximum dose of 90 mgs (Maximum bolus of 9 mgs

Total dose __________ mg

 

5.

Neurovitals and blood pressure q 15 min x 1 hour after start of infusion,

then q 30 min x 2 hours

then q 1 h x 1 6 hours

then q 2 h x 24 hours

if stable q 6 h x 48 hours

then q12h

Temperature q 2 hr x 24 hours then as per clinical unit routines

6.

NPO except for meds for 24 hours then see Admission Orders.

7.

No heparin, warfarin , aspirin, ticlopidine or clopidogrel or other antiplatelet or anticoagulant durgs or NSAIDs for 24 hours

8.

 

Bleeding precautions: check puncture sites for bleeding or hematomas.

Apply digital pressure dressings to active compressible bleeding sites.

Evaluate urine, stool, emesis or other secretions for blood.

9.

Notify most responsible physician immediately if evidence of bleeding, neurological

deterioration and/or vital signs outside:

· Systolic blood pressure greater than 185 or less than 110 mm Hg

· Diastolic blood pressure greater than 95 or less than 60 mmHg for 2 or more readings taken more than 5-10 minutes apart

· Pulse less than 50 / min

· Respiration Rates greater than 24

· Temperature greater than38° C

10.

Monitor intake / output x 48 hours and reassess

11.

Avoid intramuscular injections, blood draws, catheterizations or other invasive line / procedures for 24 hours after thrombolysis treatment.

12.

Bladder care:If incontinent: in-out catheterization for residual volume, send for R&M.

Notify most responsible physician if volume more than 200 mL.

If patient does not void within next 8 hours: In-out catheterization for volume.

Send for R&M, culture and sensitivity. Catheterize q6h prn.

Notify most responsible physician if volume less than 200 mL over 8 hours

13.

Activity: bathroom privileges

HAMILTON HOSPITALSr-tPA DOSING CHART FOR ACUTE ISCHEMIC STROKE

Weight in kg (lbs) Total Dose Vial Size Amount removed from vial 10% bolus 90% remaining dose
41 (90) 37 50 13 4 33
42 (93) 38 50 12 4 34
43 (95) 39 50 11 4 35
44 (97) 40 50 10 4 36
45 (99) 41 50 9 4 37
46 (101) 41 50 9 4 37
47 (103) 42 50 8 4 38
48 (106) 43 50 7 4 39
49 (108) 44 50 6 4 40
50 (110) 45 50 5 5 40
51 (112) 46 50 4 5 41
52 (114) 47 50 3 5 42
53 (117) 48 50 2 5 43
54 (119) 49 50 1 5 44
55 (121) 50 50 0 5 45
56 (123) 50 50 0 5 45
57 (125) 51 100 49 5 46
58 (128) 52 100 48 5 47
59 (130) 53 100 47 5 48
60 (132) 54 100 46 5 49
61 (134) 55 100 45 5 50
62 (136) 56 100 44 6 50
63 (139) 57 100 43 6 51
64 (141) 58 100 42 6 52
65 (143) 59 100 41 6 53
66 (145) 59 100 41 6 53
67 (147) 60 100 40 6 54
68 (150) 61 100 39 6 55
69 (152) 62 100 38 6 56
70 (154) 63 100 37 6 57
71 (156) 64 100 36 6 58
72 (158) 65 100 35 6 59
73 (161) 66 100 34 7 59
74 (163) 67 100 33 7 60
75 (165) 68 100 32 7 61
76 (167) 68 100 32 7 61
77 (169) 69 100 31 7 62
78 (172) 70 100 30 7 63
79 (174) 71 100 29 7 64
80 (176) 72 100 28 7 65
81 (178) 73 100 27 7 66
82 (180) 74 100 26 7 67
83 (183) 75 100 25 7 68
84 (185) 76 100 24 8 68
85 (187) 77 100 23 8 69
86 (189) 77 100 23 8 69
87 (191) 78 100 22 8 70
88 (194) 79 100 21 8 71
89 (196) 80 100 20 8 72
90 (198) 81 100 19 8 73
91 (200) 82 100 18 8 74
92 (202) 83 100 17 8 75
93 (205) 84 100 16 8 76
94 (207) 85 100 15 8 77
95 (209) 86 100 14 9 77
96 (211) 86 100 14 9 77
97 (213) 87 100 13 9 78
98 (216) 88 100 12 9 79
99 (218) 89 100 11 9 80
100 (220) 90 100 10 9 81
100 + (220 +) 90 100 10 9 81

 

GIVING r-tPA for Acute Ischemic Stroke

1. Mix 100mg of r-tPA with diluent (not IV solution).

2. Check STROKE medication chart for exact total amount to be given.

3. Use syringe and withdraw amount to be discarded prior to hanging of the bottle (bottle should    now only contain exact amount to be given.)

4. Hang bottle using IVAC tubing.

5. Carefully prime tubing and set up IVAC machine.

    Use of IVAC

5.1. BOLUS:

· Clear - volume infused.

· Set - volume to be infused @ bolus dose specified per weight

                (maximum bolus dose is 9mg—maximum dose is 90 mg)

· Set - IVAC rate @ 270 mL/hr.

· Turn IVAC on - will infuse @ 9 mL in 2 minutes.

5.2. NEXT 60 MINUTES

· Clear - volume infused.

· Set - volume to be infused @ amount specified on chart.

· Set - rate @ the same amount to be infused.

· Turn IVAC on - will alarm when tPA bottle empty

            (remember that part of the amount of the r-tPA is still in the tubing)

· Replace r-tPA bottle with 250 cc of Normal Saline.

· Turn IVAC back on - will alarm when total amount is absorbed

            (now all the r-tPA in the tubing is absorbed as well)

 

STROKE - ADMISSION ORDERS POST-THROMBOLYSIS (Phase III)

1.

BRP first 24 hours then as tolerated

2.

Initiate DVT prophylaxis 24 hours after thrombolysis

3.

Initiate antiplatelet or anticoagulant stroke prophylaxis 24 hours after thrombolysis

4.

Consult the following: (cross out those not required)

Physiotherapy; Social Work

Occupational Therapy Speech/Language Pathologist

Registered Dietician Neurology

5.

Bladder care:

If incontinent: in-out catheterization for residual volume, send for R&M. Notify most responsible physician if volume more than 200 mL.

If patient does not void within next 8 hours: In-out catheterization for volume. Send for R&M, culture and sensitivity. Catheterize q6h prn.

Notify most responsible physician if volume less than 200 mL over 8 hours

6.

Bowel Care: Docusate sodium 100 mg bid.

If no BM in 2 days, give Magnesium Hydroxide (Milk of Magnesium) 30 mL po qhs.

If no BM on day 3, give Bisacodyl suppository (Dulcolax) 10 mg per rectum, followed by sodium phosphate (Fleet) enema if needed.

Repeat protocol if needed.

What We Do:
The solution

Links:
the links

Evidence Footnotes:
1. reference
Authorship: Dr Valerie Taylor                                                         Last Revised: 29 May 2002