A nurse is caring for a client who reports chest pain. Which of the following laboratory findings indicates myocardial damage?
Troponin 11.8 ng/mL
Erythrocyte sedimentation rate (ESR) 17 mm/hr
Human B-type natriuretic peptide 88 pg/ml.
aPTT 80 seconds
The Correct Answer is A
A.
A. Troponin is a protein released into the bloodstream when there is damage to the heart muscle (myocardium), such as during a heart attack. Elevated troponin levels indicate myocardial injury or damage, making this the correct choice for indicating myocardial damage.
B. Erythrocyte sedimentation rate (ESR) measures the rate at which red blood cells settle in a tube of blood. It is a non-specific marker of inflammation and is not specific to myocardial damage.
C. Human B-type natriuretic peptide (BNP) is released by the heart in response to increased pressure and volume. Elevated levels are indicative of heart failure, not necessarily myocardial damage.
D. Activated partial thromboplastin time (aPTT) measures the time it takes for blood to clot. It is used to monitor the effectiveness of anticoagulant therapy and is not specific to myocardial
damage.
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Related Questions
Correct Answer is D
Explanation
A. Instilling erythromycin ophthalmic ointment in the newborn's eyes is important to prevent neonatal conjunctivitis, but drying the newborn takes precedence to prevent heat loss and stimulate breathing immediately after birth.
B. Weighing the newborn and placing identification bracelets can be done after drying the newborn.
C. Placing identification bracelets on the newborn is important for identification purposes but does not take precedence over drying the newborn to prevent heat loss and stimulate breathing.
D. Dry the newborn: Drying the newborn is the priority immediately after birth to prevent heat
loss and stimulate breathing. The newborn is wet from amniotic fluid and may be cold due to the temperature difference between the intrauterine and extrauterine environment. Drying the newborn with a warm, soft towel helps to prevent hypothermia and promotes the initiation of breathing, which is essential for oxygenation and lung expansion. This action supports the
newborn's transition to extrauterine life and sets the stage for subsequent assessments and interventions.
Correct Answer is B
Explanation
A. Influenza immunizations: This is an example of primary prevention because it aims to prevent the occurrence of influenza infection in the first place.
B. Tuberculosis screenings: This is an example of secondary prevention because it involves early detection and treatment of tuberculosis infection to prevent its progression to active disease and
transmission to others.
C. Presentations about safer sex practices: This is an example of primary prevention aimed at reducing the risk of sexually transmitted infections by promoting safe behaviors.
D. Evaluations of bloodborne pathogen policies: This is an administrative activity related to ensuring workplace safety and adherence to policies and procedures and does not directly
involve prevention of communicable diseases among individuals.
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