Anticoagulant Therapy

Question 1

Antidote for warfarin

Answer 1

vitamin K

Question 2

INR lab values

Answer 2

Normal < 1.1
Therapeutic: 2.0-3.0 (A.fib, DVT, PE)
High-risk patients: 2.5-3.5 (mechanical valves)

Question 3

INR indication

Answer 3

INR is used to measure the PT ratio and warfarin therapy.

Question 4

normal aPTT

Answer 4

23.3-31.9 seconds

Question 5

Prolonged PTT

Answer 5

Prolonged PT means that the blood is taking too long to form a clot.

Question 6

Clinical value for aPTT with people when the client is receiving heparin therapy

Answer 6

1.5-2.5 times longer than the person’s pretreatment level

Question 7

Antidote for heparin

Answer 7

protamine sulphate

Question 8

Partial Thrombin Time (PT) therapeutic value of a client taking warfarin

Answer 8

17.25-25 seconds

Question 9

Normal PTT intervals

Answer 9

11-12.5 seconds

Question 10

aPTT value for someone on a heparin infusion

Answer 10

34 to 78 seconds

Question 11

aPTT evaluates this medication and sequence.

Answer 11

aPTT evaluates how well the coagulation sequence is functioning by measuring the amount of time it takes in seconds for recalfiied citrated plasma to clot after partial thromboplastin is added to it

• • monitors the effectiveness of heparin
• • screens to coagulation disorders

Question 12

when should blood be drawn to measure aPTT?

Answer 12

1 hour prior to heparin dose

Question 13

if aPTT value is greater than 100 seconds, what should you do?

Answer 13

initiate bleed precautions

Question 14

What does PT measure?

Answer 14

PT measures the amount of time it takes in seconds for clot formation and is used to monitor response to warfarin sodium therapy
- screens for extrinsic clotting disorders (vitamin K deficiency, DIC)

Question 15

normal INR interval

Answer 15

<1.1

Question 16

If the PT value is longer than ______ and the INR is greater than ______ , initiate these precautions ______

Answer 16

25 seconds; INR 3.0; bleeding precautions

Question 17

These foods can shorten the PT in people receiving warfarin.

Answer 17

green leafy vegetables increase the absorption of vitamin K, thus, decreasing warfarin

Question 18

HgbA1C and estimated average blood glucose

Answer 18

4%= 3.62 mmol
5%= 5.57 mmol
6%= 7.52 mmol
7%= 9.47 mmol
8%= 11.42 mmol