Deck 26: Drugs Used to Treat Thromboembolic Disorders

Question 1

The pharmacologic agents used to treat DVT may act in which way(s)? (Select all that apply.)

A) Prevent platelet aggregation.
B) Prevent the extension of existing clots.
C) Inhibit steps in the fibrin clot formation cascade.
D) Prolong bleeding time.
E) Lower serum triglycerides.

Answer 1

Prevent platelet aggregation.
Prevent the extension of existing clots.
Inhibit steps in the fibrin clot formation cascade.
Prolong bleeding time.

Question 2

What is the rationale for administering fibrinolytic agents,such as streptokinase,within hours of the onset of myocardial infarction?

A) Enhances myocardial oxygenation.
B) Lyses the blood clot.
C) Promotes platelet aggregation.
D) Inhibits clotting mechanisms.

Answer 2

Lyses the blood clot.

Question 3

A patient is receiving IV heparin therapy.The aPTT is 90; the laboratory control is 30 seconds.Which nursing intervention is most accurate?

A) Document in the nursing notes that these results are within therapeutic range.
B) Note the RBC count and wait for the healthcare provider to make the next round to discuss all laboratory values.
C) Stop the heparin drip.
D) Assess the patient for signs and symptoms of decreased sensorium.

Answer 3

Stop the heparin drip.

Question 4

A patient receiving IV heparin therapy for a deep vein thrombosis (DVT)in his right calf asks why his calf remains painful,edematous,and warm to touch after 2 days of anticoagulant therapy.Which response by the nurse is most accurate?

A) "It takes at least 3 days for the symptoms to resolve once the clot dissolves."
B) "Heparin does not dissolve blood clots but neutralizes clotting factors,preventing extension of the clot and the possibility of it traveling elsewhere in your body."
C) "I will report this to your healthcare provider because there may be a need to look at alternative treatments."
D) "You appear anxious.The healthcare provider will eventually put you on ticlopidine,which allows for an earlier discharge."

Question 5

The nurse is caring for a 27-year-old woman on the postpartum unit one day following a C-section.To prevent clot formation,the nurse will:

A) position the patient with knees flexed.
B) initiate use of fitted thromboembolic disease deterrent (TED)stockings.
C) maintain complete bed rest.
D) implement deep breathing and coughing exercises.

Question 6

The nurse is teaching a patient about dietary implications while on warfarin (Coumadin)therapy.Which salad is highest in vitamin K?

A) Fruit
B) Pasta
C) Potato
D) Spinach

Question 7

The nurse has provided instruction to a patient recently prescribed warfarin (Coumadin).Which statement by the patient indicates to the nurse the need for further teaching?

A) "I will always wear a medical alert bracelet."
B) "I will check with my healthcare provider before I take any OTC medications."
C) "I will be careful when I use a knife or other sharp objects."
D) "I will rinse my mouth with mouthwash instead of brushing my teeth."

Question 8

Which symptom is indicative of bleeding in a patient taking warfarin (Coumadin)?

A) Bradycardia
B) Petechiae
C) Increased urinary output
D) Dry skin

Question 9

A trauma patient arrives in the emergency department via EMS.He is bleeding profusely.A medical alert bracelet indicates that he is on heparin therapy.The nurse will most likely administer which medication that counteracts the action of heparin?

A) Warfarin sodium (Coumadin)
B) Enoxaparin (Lovenox)
C) Protamine sulfate
D) Vitamin K

Question 10

Which action will the nurse implement to decrease the risk of clot formation in an older patient on bed rest?

A) Assess peripheral pulses.
B) Encourage passive leg exercises.
C) Limit fluid intake.
D) Position pillows behind the knees.

Question 11

A patient is receiving 1400 units of heparin/hr on an IV pump.The aPTT time is 54.The laboratory control is 25.Which action by the nurse is accurate?

A) Bolus the patient with an additional 5000 units of heparin.
B) Stop the heparin immediately and notify the healthcare provider that the patient's blood level is toxic.
C) Administer protamine sulfate stat.
D) Continue with the prescribed rate.

Question 12

Rivaroxaban (Xarelto)is ordered on a patient following knee replacement surgery.When providing education on this medication to the patient,the nurse conveys that treatment will continue:

A) only while hospitalized.
B) for 35 days postsurgically.
C) for 12 days postsurgically.
D) as long as creatinine clearance is less than 30.

Question 13

Dipyridamole (Persantine)has been used extensively in combination with warfarin to prevent the formation of thromboembolism after which type of event?

A) Myocardial infarction
B) Transient ischemic attack
C) Cardiac valve replacement
D) Heart transplant

Question 14

Which is an accurate nursing action when administering subcutaneous enoxaparin,a low-molecular-weight heparin product?

A) Expel the air bubble from the prefilled syringe.
B) Leave the needle in place for 10 seconds after injection.
C) Administer the medication into the deltoid muscle.
D) Massage the site after injection to increase absorption.

Question 15

What is the mechanism of action of drugs used to treat thromboembolic disease?

A) Dissolving clots and preventing formation of new clots
B) Making platelets more flexible and preventing formation of new clots
C) Causing vasodilation and increased blood flow
D) Preventing platelet aggregation and inhibiting clot formation

Question 16

Which nursing intervention(s)would be accurate when administering heparin subcutaneously? (Select all that apply.)

A) Assessment of recent aPTT levels
B) Massaging the site after injection of medication
C) Aspirating after needle insertion
D) Documenting ecchymotic areas
E) Monitoring of vital signs

Question 17

The nurse is preparing to administer dalteparin (Fragmin)to a patient in order to prevent DVT following a hip replacement.When providing this medication to the patient,the nurse will: (Select all that apply.)

A) administer intramuscularly.
B) inject slowly.
C) remove needle immediately after injection.
D) rub injection site following administration.
E) alternate injection sites every 24 hours.

Question 18

The nurse is preparing discharge education for a patient who will be receiving warfarin (Coumadin)at home.Which important point(s)will the nurse include? (Select all that apply.)

A) "Do not make any major changes to your diet without discussing it with your healthcare provider."
B) "Keep outpatient laboratory appointments for monitoring of therapy."
C) "Take the medication after meals."
D) "Report signs of bleeding to your healthcare provider,including observing skin for bruising; petechiae; blood in emesis,urine,or stools; bleeding gums; cold,clammy skin; faintness; or altered sensorium."
E) "Avoid aspirin products."