A nurse is caring for a child who was admitted with suspected rheumatic fever. The provider prescribes an antistreptolysin O (ASO) titer. The parent asks the nurse about the purpose of the test. Which of the following responses should the nurse make?
"This test will indicate if your child has rheumatic fever."
"This test will confirm if your child had a recent streptococcal infection."
"This test will indicate if your child has a therapeutic blood level of an aminoglycoside."
"This test will confirm if your child has immunity to streptococcal bacteria."
The Correct Answer is B
Choice A: This test will not indicate if the child has rheumatic fever, as rheumatic fever is a complication of an untreated or inadequately treated streptococcal infection that affects the heart, joints, skin, and brain. Rheumatic fever is diagnosed based on clinical criteria, such as carditis, polyarthritis, chorea, erythema marginatum, and subcutaneous nodules.
Choice B: This test will confirm if the child had a recent streptococcal infection, as antistreptolysin O (ASO) is an antibody that the body produces in response to streptococcal bacteria. A high ASO titer indicates that the child was exposed to streptococcal bacteria within the past few weeks. A streptococcal infection can cause pharyngitis, tonsillitis, scarlet fever, or impetigo.
Choice C: This test will not indicate if the child has a therapeutic blood level of an aminoglycoside, as an aminoglycoside is a type of antibiotic that is used to treat serious bacterial infections. A therapeutic blood level of an aminoglycoside means that the drug is effective and safe in the body. A therapeutic blood level of an aminoglycoside is measured by a peak and trough level.
Choice D: This test will not confirm if the child has immunity to streptococcal bacteria, as immunity to streptococcal bacteria means that the body can resist or fight the infection. Immunity to streptococcal bacteria can be acquired by natural exposure or vaccination. Immunity to streptococcal bacteria is measured by an antibody titer or a skin test.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A: Tachycardia is not a finding that indicates increased intracranial pressure, but rather a sign of shock, dehydration, or pain. Tachycardia is a fast heart rate, which is more than 160 beats per minute in infants. Tachycardia can occur when the body tries to compensate for low blood pressure, fluid loss, or tissue damage.
Choice B: Increased sleeping is a finding that indicates increased intracranial pressure, as it reflects altered level of consciousness, which is one of the earliest and most sensitive signs of increased intracranial pressure. Increased intracranial pressure can compress the brain tissue and affect its function and responsiveness. Increased sleeping can progress to lethargy, stupor, or coma.
Choice C: Brisk pupillary reaction to light is not a finding that indicates increased intracranial pressure, but rather a normal and expected response. A brisk pupillary reaction to light means that the pupils constrict quickly when exposed to bright light and dilate quickly when exposed to dim light. Brisk pupillary reaction to light indicates intact cranial nerve II (optic) and III (oculomotor).
Choice D: Depressed fontanels are not a finding that indicates increased intracranial pressure, but rather a sign of dehydration or malnutrition. Depressed fontanels are sunken or flat areas on the top or back of an infant's head where the skull bones have not yet fused together. Depressed fontanels can occur when there is insufficient fluid or tissue volume in the body.
Correct Answer is C
Explanation
Choice A: A popping sensation when swallowing is not a sign of a tympanic membrane rupture, as it is a normal phenomenon that occurs when the eustachian tube opens and closes to equalize the pressure between the middle ear and the atmosphere. A popping sensation when swallowing may be associated with otitis media with effusion, which is a condition that causes fluid accumulation behind the eardrum, but it does not indicate a rupture.
Choice B: Green-blue discharge could be indicative of infection but is not as directly related to the rupture event as the sudden pain relief is.
Choice C: The correct answer is sudden relief of pain. This is because the rupture of the tympanic membrane releases the pressure and fluid that has built up in the middle ear, leading to an immediate decrease in pain.
Choice D: An increased temperature is not a sign of a tympanic membrane rupture, as it is a nonspecific symptom that may indicate various conditions, such as inflammation, infection, or fever. An increased temperature may be associated with otitis media with effusion, which is a condition that causes fluid accumulation behind the eardrum, but it does not indicate a rupture.
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