A parent comments that her infant has had several ear infections in the past few months. Why are infants more susceptible to otitis media?
Infants are in a supine or prone position most of the time.
Sucking on a nipple creates middle ear pressure.
The Eustachian tube is short, straight, and wide.
Sucking on a nipple creates middle ear pressure.
The Correct Answer is C
C. The Eustachian tube in infants is shorter, straighter, and wider compared to adults. This anatomy makes it easier for bacteria or viruses from the nasopharynx to travel up the Eustachian tube and infect the middle ear, contributing to the increased susceptibility to otitis media.
A. Infants spend a significant amount of time lying down, whether in a supine (on their backs) or prone (on their stomachs) position. However, this does not increase the risk of otitis media
B. Sucking on a nipple does create pressure changes in the middle ear but it's not the primary reason infants are more susceptible to otitis media.
D. Sucking on a nipple does create pressure changes in the middle ear but it's not the primary reason infants are more susceptible to otitis media
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
C. Clubbing, characterized by bulbous enlargement of the fingertips and nail bed, is a result of chronic hypoxia in tetralogy of Fallot. In tetralogy of Fallot, there is a right-to-left shunting of blood due to the presence of a ventricular septal defect, overriding aorta, pulmonary stenosis, and right ventricular hypertrophy. This leads to reduced oxygenation of blood and chronic hypoxia, which can result in clubbing of the fingertips over time.
A This option is not the primary explanation for clubbing in tetralogy of Fallot. While decreased cardiac output may contribute to some manifestations of the condition, clubbing specifically results from chronic hypoxia rather than decreased cardiac output alone.
B Clubbing is not directly caused by a left-to-right shunting of blood. Instead, it is associated with chronic hypoxia, which can occur due to right-to-left shunting of blood in tetralogy of Fallot.
D Congestive heart failure may occur in individuals with tetralogy of Fallot but it is not the primary cause of clubbing. Clubbing in tetralogy of Fallot is primarily attributed to chronic hypoxia rather than heart failure alone.
Correct Answer is ["3.1"]
Explanation
1kg = 2.205lbs Weight in kgs= 9.979
Desired dose= 10mg/kg Dose= 99.79mg
Volume= desired dose/ available concentration per ml Volume= 99.79mg/ 32
Volume= 3.12mls
Therefore, the nurse should administer 3.1mls
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