A nurse is reporting a client’s laboratory tests to the provider to obtain a prescription for the client’s daily warfarin.
Which of the following laboratory tests should the nurse plan to report to obtain the prescription for the warfarin?
INR.
Fibrinogen level.
aPTT.
Platelet count.
The Correct Answer is A
Warfarin is a vitamin K antagonist that inhibits the synthesis of factors II, VII, IX, and X in the liver. These factors are part of the extrinsic and common pathways of coagulation, which are measured by the prothrombin time (PT) and the international normalized ratio (INR). The INR is a standardized way of reporting the PT that accounts for the variability of different reagents and instruments. The INR is used to monitor the therapeutic effect of warfarin and to adjust the dose accordingly. The target INR range depends on the indication for warfarin, but it is usually between 2 and 3 for most conditions.
Choice B is wrong because fibrinogen level is not affected by warfarin.
Fibrinogen is a precursor of fibrin, which forms the final step of the coagulation cascade.
Fibrinogen level can be decreased in conditions such as disseminated intravascular coagulation (DIC), liver disease, or severe bleeding.
Choice C is wrong because aPTT is not affected by warfarin.
aPTT measures the intrinsic and common pathways of coagulation, which are mainly dependent on factors VIII, IX, XI, and XII.
These factors are not inhibited by warfarin.
aPTT is used to monitor the effect of heparin, a direct antithrombin agent that inhibits thrombin and factor Xa.
Choice D is wrong because platelet count is not affected by warfarin.
Platelets are cell fragments that adhere to damaged blood vessels and form aggregates to initiate hemostasis.
Platelet count can be decreased in conditions such as immune thrombocytopenia (ITP), heparin-induced thrombocytopenia (HIT), or bone marrow suppression.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B,D,A,C
Explanation
B. Review the skill level and qualifications of each AP.
Before delegating tasks, the nurse should assess the skill level and qualifications of each AP to ensure they have the necessary knowledge and training to perform the assigned tasks safely and effectively.
D. Communicate appropriate tasks to the APs with specific expectations.
The nurse should clearly communicate the tasks to be delegated to each AP. This includes providing specific instructions, expectations, and any necessary information to ensure the APs understand what is expected of them and can perform the tasks correctly.
A. Monitor progress of task completion with each AP.
Once the tasks are assigned, the nurse should periodically check in with each AP to monitor the progress of task completion. This allows the nurse to provide support, answer questions, and ensure that tasks are being performed as expected.
C. Evaluate the APs' performance of each task.
After the tasks are completed, the nurse should evaluate the APs' performance of each task. This evaluation helps identify any areas for improvement, additional training needs, and overall competency of the APs.
Delegating tasks to assistive personnel is an essential aspect of nursing practice. Following this sequence of steps helps ensure that tasks are delegated appropriately and that the care provided is safe, efficient, and aligned with the APs' capabilities. Regular communication and feedback are essential to effective task delegation and teamwork within the healthcare setting.
Correct Answer is D
Explanation
A client who is experiencing a panic attack has a very high level of anxiety and a diminished ability to focus. The nurse should stay with the client and remain calm and reassuring during the panic attack. This can help the client feel safe and supported, and reduce the intensity of the anxiety.
Choice A is wrong because atomoxetine is not an anti-anxiety medication, but a selective norepinephrine reuptake inhibitor (SNRI) used to treat attention deficit hyperactivity disorder (ADHD). It has no effect on reducing anxiety and can cause side effects such as insomnia, nausea, and increased blood pressure.
Choice B is wrong because encouraging the client to watch television is not a therapeutic intervention for a panic attack.
Watching television can increase the stimuli in the client’s environment, which can worsen anxiety.
The nurse should maintain an environment with low stimulation for the client experiencing a panic attack. Dim lighting, few people, and minimal distractions can assist the nurse to decrease the client’s level of anxiety.
Choice C is wrong because teaching the client how to meditate is not appropriate during a panic attack.
Meditation is a relaxation technique that can be helpful for preventing or reducing anxiety, but it requires concentration and focus, which are impaired in a panic attack. The nurse should teach the client how to meditate when the client is calm and receptive, not when the client is in crisis.
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