A Patient Is Due to Receive a Scheduled Dose of Warfarin

question 174

Multiple Choice

A patient is due to receive a scheduled dose of warfarin 2.5 mg by mouth.A nurse notes that the patient's prothrombin time (PT) is 24.1 seconds and international normalized ratio (INR) is 3.77.Which action by the nurse is most appropriate?

• A)Administer the warfarin as ordered.
• B)Contact the requesting health-care provider for an increased dose.
• C)Give one-half the dose ordered and notify the requesting health-care provider on rounds the next day.
• D)Hold the dose and immediately notify the requesting health-care provider of the result.

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Definitions:

Cortisol

A hormone, released during the body’s response to stress, that increases blood glucose levels and affects the immune response.

Epinephrine (Adrenaline)

A hormone and neurotransmitter involved in the body's fight-or-flight response, increasing heart rate, muscle strength, blood pressure, and sugar metabolism.

Cytokines

These chemical messengers are produced by the body as part of its immune response. These proteins can either promote inflammation or reduce it.

Dopamine

A neurotransmitter and a hormone that serves many functions in the body. As a neurotransmitter, it is involved in several brain processes, including reward systems. Low levels of dopamine production are associated with Parkinson’s disease.