The nurse is preparing to assist with blood collection on a newly admitted patient who has been taking phenytoin for several years.
The provider has ordered a complete blood count and liver function tests.
Which other blood test will the nurse discuss with the provider?
Coagulation studies.
Serum electrolytes.
Renal function tests.
Blood glucose.
The Correct Answer is D
Choice A rationale
Coagulation studies assess the blood's ability to clot and are not directly related to the monitoring of phenytoin therapy. These tests are more relevant for patients with bleeding disorders or those on anticoagulant therapy.
Choice B rationale
Serum electrolytes, including levels of sodium, potassium, and calcium, are important for overall health but are not specifically indicative of phenytoin levels. Phenytoin may affect calcium metabolism, but it is not the primary focus for routine monitoring.
Choice C rationale
Renal function tests are crucial for assessing kidney function but do not directly monitor phenytoin therapy. Phenytoin is primarily metabolized in the liver, making liver function tests more relevant.
Choice D rationale
Blood glucose levels should be monitored in patients taking phenytoin as the drug can cause alterations in blood glucose levels. Both hypoglycemia and hyperglycemia have been reported, so it is important to check glucose levels to ensure they remain within a normal range.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A rationale
Working with animals is typically done in preclinical trials before phase I studies in humans and is not part of phase III drug evaluation studies.
Choice B rationale
Conducting research to determine the effectiveness of the drug is part of phase II studies. Phase III studies focus more on confirming effectiveness, monitoring side effects, and comparing it to commonly used treatments.
Choice C rationale
Monitoring and observing patients closely for adverse effects is a key responsibility in phase III drug evaluation studies. These studies involve a larger patient population to gather comprehensive safety and efficacy data.
Choice D rationale
Choosing appropriate patients to be involved in the study is primarily the responsibility of researchers and clinicians during the earlier phases of drug development, such as phase I and phase II studies.
Correct Answer is D
Explanation
Choice A rationale
The auricle is an ear-shaped appendage on the surface of the atrium and does not separate the right and left halves of the heart. Its function is to increase the capacity of the atrium, allowing for more blood to be collected and passed to the ventricles.
Choice B rationale
Syncytia refer to a multinucleated cell that can result from the fusion of multiple cells, which is not a structure that separates the right and left sides of the heart. They are typically related to muscle tissue and coordinated contractions.
Choice C rationale
The Bundle of His is a collection of heart muscle cells specialized for electrical conduction that transmits the electrical impulses from the AV node to the point of the apex of the fascicular branches. It does not act as a separator between the right and left halves of the heart.
Choice D rationale
The septum is the structure that separates the right and left halves of the heart. It is a robust wall that divides the atria (interatrial septum) and the ventricles (interventricular septum), ensuring the segregation of oxygenated and deoxygenated blood.
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