A nurse is providing care for a client who experienced a myocardial infarction prior to a cardiac arrest. Which of the following laboratory tests will identify early injury to the cardiac muscle?
Creatine kinase (CK) test
Creatine kinase-myocardial band (CK-MB) test
Brain natriuretic peptide (BNP) test
Troponin T test
The Correct Answer is D
Answer: D. Troponin T test
Rationale:
A. Creatine kinase (CK) test: While creatine kinase isoenzymes, including CK-MB, can be elevated following myocardial infarction (MI), they are not specific to cardiac muscle injury. CK is found in various tissues throughout the body, so elevated levels can also indicate damage to skeletal muscle or brain tissue, among other sources.
B. Creatine kinase-myocardial band (CK-MB) test: CK-MB is a cardiac-specific isoform of creatine kinase, and elevated levels can indicate myocardial injury, particularly in the context of an acute MI. However, troponin T is a more sensitive and specific marker for myocardial injury.
C. Brain natriuretic peptide (BNP) test: Brain natriuretic peptide is primarily used in the diagnosis and management of heart failure. While elevated BNP levels can indicate heart muscle strain or stress, they are not specific markers for acute myocardial infarction or early injury to the cardiac muscle.
D. Troponin T test: This is the correct answer. Troponin T is a highly specific marker for cardiac muscle injury. Elevated troponin levels can be detected within hours of myocardial infarction and persist for several days, making it an essential tool in the diagnosis of acute coronary syndromes, including myocardial infarction. Troponin T is considered one of the gold standard biomarkers for detecting early injury to the cardiac muscle.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
The correct answer is c. Document the client's behavior prior to being placed in seclusion.
Rationale for Choice a. Discuss with the client his inappropriate behavior prior to seclusion:
While discussing the client's behavior may be helpful in some situations, it is not the most appropriate action to take immediately before seclusion. This is because:
- Escalation:Attempting to discuss behavior in the moments leading up to seclusion can potentially escalate the situation and further jeopardize the safety of the client,staff,and other patients.
- Impaired Insight:Clients requiring seclusion may have limited ability to engage in rational discussion due to heightened emotional states,cognitive impairment,or acute mental illness.
- Limited Receptiveness:The client may not be receptive to feedback or discussion while in a state of crisis,potentially leading to frustration and further agitation.
Rationale for Choice b. Offer fluids every 2 hr.:
Offering fluids is a basic nursing intervention, but it is not the priority action in this scenario. The primary focus at this time is ensuring safety and managing the acute behavioral crisis. Addressing hydration needs can be attended to after the client is safely placed in seclusion.
Rationale for Choice d. Assess the client’s behavior once every hour.:
Regular assessment is crucial, but hourly assessment is not frequent enough in this situation. Clients in seclusion require close monitoring and assessment at more frequent intervals to ensure their safety and well-being, as well as to evaluate the effectiveness of the seclusion intervention.
Rationale for Choice c. Document the client’s behavior prior to being placed in seclusion.:
This is the most appropriate action for the nurse to take for the following reasons:
- Legal and Ethical Requirements:Accurate documentation of the client's behavior prior to seclusion is essential for legal and ethical reasons.It serves as a record of the rationale for seclusion,supporting the decision-making process and ensuring adherence to best practices and patient rights.
- Assessment and Intervention Planning:Detailed documentation provides valuable information for ongoing assessment and intervention planning.It allows healthcare professionals to track the client's progress,identify patterns in behavior,and make informed decisions about the continuation or discontinuation of seclusion.
- Communication and Collaboration:Comprehensive documentation facilitates effective communication and collaboration among the healthcare team members,ensuring continuity of care and promoting a holistic approach to the client's treatment.
- Evaluation and Quality Improvement:Accurate documentation enables evaluation of the effectiveness of seclusion interventions and contributes to quality improvement initiatives within the healthcare setting.
Correct Answer is C
Explanation
The correct answer is choice C, malaise.
Malaise is a general feeling of discomfort, weakness, or illness that can be a sign of infection. According to the health search result from Focus Medica , bacterial pneumonia is an infection of the air sacs in one or both lungs that causes symptoms such as cough with phlegm, fever, chills, and difficulty breathing.
Malaise is one of the symptoms that may follow these signs of infection.
Choice A, drooling, is wrong because it is not a typical symptom of bacterial pneumonia.
Drooling can be caused by other conditions, such as sore throat, dental problems, or neurological disorders.
Choice B, tinnitus, is wrong because it is not a symptom of bacterial pneumonia either.
Tinnitus is a ringing or buzzing sound in the ears that can be caused by exposure to loud noise, ear infections, or other ear problems.
Choice D, rhinorrhea, is wrong because it is not specific to bacterial pneumonia.
Rhinorrhea is a runny nose that can be caused by many factors, such as allergies, colds, or sinus infections.
Rhinorrhea can sometimes occur with viral pneumonia, but not usually with bacterial pneumonia.
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