Nursing practice questions with comprehensive rationales
NurseDive Free Nursing Practice Question
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?
A. Creatine kinase (CK) test
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
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 (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
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.
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Full Explanation
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.
Similar Questions
A nurse is preparing an in-service for a group of nurses about malpractice issues in nursing. Which of the following examples should the nurse include in the teaching as an example of malpractice?
A. Placing a yellow bracelet on a client who is at risk for falls
wrong because placing a yellow bracelet on a client who is at risk for falls is not malpractice, but rather a safety measure. A yellow bracelet indicates that the client needs assistance with mobility and should not be left alone. This is a common practice in many health care facilities to prevent falls and injuries.
B. Leaving a nasogastric tube clamped after administering oral medication.
wrong because leaving a nasogastric tube clamped after administering oral medication is not malpractice, but rather a mistake. A nasogastric tube is a tube that goes through the nose and into the stomach to deliver nutrition or medication. It should be unclamped after giving oral medication to allow the medication to enter the stomach and prevent reflux or aspiration. However, this error does not rise to the level of malpractice unless it causes harm to the patient, such as vomiting, choking, or infection.
C. Administering potassium via IV bolus
This is because potassium is a medication that can cause cardiac arrest if given too quickly or in high doses. A nurse who administers potassium via IV bolus is not providing the standard of care that a similarly trained nurse would have offered under the same circumstances. This could result in harm or death to the patient.
D. Documenting communication with a provider in the progress notes of the client’s medical record.
because documenting communication with a provider in the progress notes of the client’s medical record is not malpractice, but rather a good practice. A nurse
Full Explanation
The correct answer is choice C. Administering potassium via IV bolus is an example of malpractice in nursing.
This is because potassium is a medication that can cause cardiac arrest if given too quickly or in high doses. A nurse who administers potassium via IV bolus is not providing the standard of care that a similarly trained nurse would have offered under the same circumstances.
This could result in harm or death to the patient.
Choice A is wrong because placing a yellow bracelet on a client who is at risk for falls is not malpractice, but rather a safety measure.
A yellow bracelet indicates that the client needs assistance with mobility and should not be left alone. This is a common practice in many health care facilities to prevent falls and injuries.
Choice B is wrong because leaving a nasogastric tube clamped after administering oral medication is not malpractice, but rather a mistake.
A nasogastric tube is a tube that goes through the nose and into the stomach to deliver nutrition or medication.
It should be unclamped after giving oral medication to allow the medication to enter the stomach and prevent reflux or aspiration. However, this error does not rise to the level of malpractice unless it causes harm to the patient, such as vomiting, choking, or infection.
Choice D is wrong because documenting communication with a provider in the progress notes of the client’s medical record is not malpractice, but rather a good practice. A nurse
A nurse is teaching a client who has chronic pain about avoiding constipation from opioid medications.
Which of the following information should the nurse include in the teaching?
A. Decrease insoluble fiber intake.
decreasing insoluble fiber intake can worsen constipation. Insoluble fiber adds bulk to the stool and helps it pass more easily through the colon. Clients who take opioid medications should increase their intake of insoluble fiber from sources such as whole grains, fruits, vegetables, nuts, and seeds.
B. Increase exercise
Exercise can help stimulate bowel movements and prevent constipation, which is a common side effect of opioid medications. Exercise can also improve blood circulation, reduce stress, and enhance mood, which can benefit clients who have chronic pain.
C. Reduce water intake
because drinking less water can lead to dehydration and hardening of the stool, which can make it more difficult to pass. Clients who take opioid medications should drink plenty of water to keep the stool soft and moist.
D. take a laxative every day
is wrong because taking a laxative every day can cause dependence, tolerance, and electrolyte imbalance. Laxatives should be used only as a last resort and under the guidance of a health care provider. Clients who take opioid medications should try other methods of preventing constipation first, such as increasing exercise, fiber, and water intake.
Full Explanation
The correct answer is choice B. Increase exercise.
Exercise can help stimulate bowel movements and prevent constipation, which is a common side effect of opioid medications.
Exercise can also improve blood circulation, reduce stress, and enhance mood, which can benefit clients who have chronic pain.
Choice A is wrong because decreasing insoluble fiber intake can worsen constipation.
Insoluble fiber adds bulk to the stool and helps it pass more easily through the colon.
Clients who take opioid medications should increase their intake of insoluble fiber from sources such as whole grains, fruits, vegetables, nuts, and seeds.
Choice C is wrong because drinking less water can lead to dehydration and hardening of the stool, which can make it more difficult to pass.
Clients who take opioid medications should drink plenty of water to keep the stool soft and moist.
Choice D is wrong because taking a laxative every day can cause dependence, tolerance, and electrolyte imbalance.
Laxatives should be used only as a last resort and under the guidance of a health care provider.
Clients who take opioid medications should try other methods of preventing constipation first, such as increasing exercise, fiber, and water intake.
A home health nurse is caring for a child who has Lyme disease.
Which of the following is an appropriate action for the nurse to take?
A. Ensure the state health department has been notified.
The nurse should ensure the state health department has been notified of the child’s Lyme disease, as it is a reportable disease in most states. Reporting helps to monitor the incidence and prevalence of Lyme disease and to implement prevention and control measures.
B. Administer antitoxin
because antitoxin is not used to treat Lyme disease. Antitoxin is a substance that neutralizes the effects of a toxin, such as botulism or tetanus. Lyme disease is caused by a bacterium called Borrelia burgdorferi, which can be treated with antibiotics.
C. Educate the family to avoid sharing personal belongings.
wrong because Lyme disease is not transmitted by sharing personal belongings. Lyme disease is spread to humans by the bite of infected ticks that carry the bacterium. The risk of getting Lyme disease can be reduced by avoiding tick-infested areas, wearing protective clothing, using insect repellent, and removing ticks promptly.
D. Assess for skin necrosis
is wrong because skin necrosis is not a common complication of Lyme disease. Skin necrosis is the death of skin tissue due to lack of blood supply or infection. Lyme disease can cause a characteristic skin rash called erythema migrans, which is usually circular or oval and expands over time. Other possible signs and symptoms of Lyme disease include fever, headache, fatigue, joint pain, and neurological problems.
Full Explanation
The correct answer is choice A. The nurse should ensure the state health department has been notified of the child’s Lyme disease, as it is a reportable disease in most states.
Reporting helps to monitor the incidence and prevalence of Lyme disease and to implement prevention and control measures.
Choice B is wrong because antitoxin is not used to treat Lyme disease.
Antitoxin is a substance that neutralizes the effects of a toxin, such as botulism or tetanus. Lyme disease is caused by a bacterium called Borrelia burgdorferi, which can be treated with antibiotics.
Choice C is wrong because Lyme disease is not transmitted by sharing personal belongings. Lyme disease is spread to humans by the bite of infected ticks that carry the
bacterium. The risk of getting Lyme disease can be reduced by avoiding tick-infested areas, wearing protective clothing, using insect repellent, and removing ticks promptly.
Choice D is wrong because skin necrosis is not a common complication of Lyme disease.
Skin necrosis is the death of skin tissue due to lack of blood supply or infection. Lyme disease can cause a characteristic skin rash called erythema migrans, which is usually circular or oval and expands over time. Other possible signs and symptoms of Lyme disease include fever, headache, fatigue, joint pain, and neurological problems.