Deck 44: Anticoagulation Therapy

Question 1

The normal International Normalized Ratio (INR) range for a patient without liver disease is:

A) 1.0-2.0
B) 0.8-1.2
C) 2.0-3.0
D) 3.0-4.0

Answer 1

B

Question 2

Being on a blood thinner means the blood is more watery.

Answer 2

False

Question 3

When starting warfarin as an outpatient, the blood should be checked within:

A) 1 week
B) 1 day
C) 10 days
D) 2-3 days

Answer 3

D

Question 4

You are considering initiating warfarin for a 76-year-old male with newly diagnosed atrial fibrillation. He carries the diagnoses of hypertension and diabetes. What is his CHADS2 score?

A) 1
B) 2
C) 3
D) 4

Question 5

The reversal agent for warfarin is:

A) Vitamin K
B) Seaweed
C) One unit packed red blood cells
D) None of the above; there is no FDA-approved reversal agent

Question 6

The foods that are richest in Vitamin K are:

A) Yogurt, cheese, and other dairy products
B) Dark leafy green vegetables
C) Beans and other legumes
D) Red meats

Question 7

Many medications interact with warfarin. The following medications can cause significant alteration of the INR:

A) Amiodarone
B) Sulfamethazole/trimethoprim
C) Erythromycins
D) All the above

Question 8

If a dose of warfarin is missed, the patient should take a double dose the next day.

Question 9

The reversal agent for the target-specific oral anticoagulants (TSOACs) is

A) Warfarin
B) Heparin
C) Vitamin K
D) Fresh frozen plasma (FFP)
E) None of the above; there is no FDA-approved reversal agent

Question 10

All the following are true about TSOACs except:

A) They have a very short half-life
B) They can be safely used in patient with renal failure
C) They are not affected by foods or supplements
D) They do not have a monitoring test
E) They can interact with other medications

Question 11

Factors to consider in prescribing warfarin to an elderly patient include all of the following except:

A) Cognitive impairment
B) Financial status
C) Fall risk
D) Dependency on others for warfarin administration

Question 12

You are seeing a 45-year-oldold female with new onset of atrial fibrillation (AF). Evaluation shows no underlying cause of her AF. She has no other significant health problems. The recommended anticoagulation treatment for this patient is:

A) Begin warfarin immediately
B) Consider warfarin if her ventricular rate goes above 100
C) Recommend aspirin 325 mg/d
D) No treatment indicated