A nurse is caring for a client who is prescribed warfarin therapy for an artificial heart valve. Which of the following laboratory values should the nurse monitor for a therapeutic effect of warfarin?
Activated partial thromboplastin time (APTT)
Bleeding time
Prothrombin time (PT)
Hemoglobin (Hgb)
The Correct Answer is C
warfarin inhibits vitamin K epoxide reductase interfering with the synthesis of vitamin K dependent clotting factors (II, VII, IX, and X). This prolongs the prothrombin time, expressed in the form of INR international normalized ratio. Monitoring of INR helps to ensure that the prescribed dosages are within the therapeutic levels without increasing the risk of bleeding. The target INR range is between 2.5 and 3.5.
A. Used to monitor heparin therapy
B, D- not used for monitoring
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Related Questions
Correct Answer is D
Explanation
Methylphenidate is a CNS agent used in the management of ADHD. It has the potential to cause dizziness or drowsiness and clients should be advised to avoid driving or operation of any machinery as it may lead to accidents.
A- Methylphenidate is a CNS agent used in the management of ADHD. It has nopotential interaction with caffeine.
B- Methylphenidate caused significant decrease in appetite with subsequent weight loss. The parents should be advised to increase the client’s caloric intake to promote healthy weight gain.
C- Methylphenidate causes insomnia and taking the medication right before bedtime leads to poor sleep pattern.
Correct Answer is D
Explanation
Bethanechol is a cholinergic agonist used to stimulate contraction of the bladder to help in the expulsion of urine. It is used in the management of urinary retention by promoting bladder emptying. Therefore, it should be administered when the client reports an inability to void, as this indicates urinary retention
A. Bladder spasms are treated with Oxybutynin
B. Frequent painful urination is a feature of UTI requiring antibiotics
C. Bethanechol has no analgesic property
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