REVIEW WITH SOLVED QUESTIONS GRADED
A+
◉ The nurse is caring for a patient who is receiving warfarin and notes
bruising and petechiae on the patient's extremities. The nurse will
request an order for which laboratory test?
1. International normalized ratio (INR)
2. Platelet level
3. PTT and aPTT
4. Vitamin K level Answer: 1. International normalized ratio (INR)
The INR is the test used most frequently to report prothrombin time
results in patients taking warfarin. Warfarin is not an antiplatelet drug, so
platelet levels are not indicated. PTT and aPTT are used to monitor
heparin therapy. Vitamin K is an antidote for warfarin; levels are not
routinely checked.
◉ The nurse is assessing a patient prior to administering thrombolytic
therapy. Which is an important assessment for this patient?
1. Determining whether the patient has a history of diabetes
2. Finding out about a history of renal disease
3. Assessing which medications are taken for discomfort
, 4. Assessing whether the patient eats green, leafy vegetables Answer: 3.
Assessing which medications are taken for discomfort
Patients who take aspirin or NSAIDs should be monitored closely for
excessive bleeding when given thrombolytics. There are no
contraindications or precautions for patients with diabetes or renal
disease. Foods rich in vitamin K are of concern for patients taking
warfarin.
◉ A patient who is taking warfarin has an international normalized ratio
(INR) of 5.5. The nurse will anticipate giving
1. fresh frozen plasma.
2. intravenous iron.
3. oral vitamin K.
4. protamine sulfate. Answer: 3. oral vitamin K.
Vitamin K is an antagonist against warfarin, an oral anticoagulant.
Patients with an INR of 5.5 should be given a low dose of oral vitamin
K. Too much vitamin K may reduce the effectiveness of warfarin for up
to 2 weeks. Fresh frozen plasma and intravenous iron are given for
anemia caused by blood loss. Protamine sulfate is given for heparin
overdose.
◉ The nurse is preparing to administer digoxin to a patient who has HF.
The patient reports nausea, vomiting, and a headache. The nurse notes a