Which factor is most important in predisposing toddlers to frequent infections such as otitis media, tonsillitis, and upper respiratory tract infections?
Respirations are abdominal
Pulse and respiratory rates are slower than those in infancy
Defense mechanisms are less efficient than those during infancy
The presence of short, straight internal ear/throat structures and large tonsil/adenoid lymph tissue
The Correct Answer is D
This is because toddlers continue to have the short, straight internal ear canal of infants.
The lymphoid tissue of the tonsils and adenoids continues to be relatively large. These two anatomic conditions combine to predispose the toddler to frequent infections.
Choice A is wrong because respirations are abdominal. This does not affect the susceptibility to infection.
Choice B is wrong because pulse and respiratory rates are slower than those in infancy. This also does not affect the susceptibility to infection.
Choice C is wrong because defense mechanisms are less efficient than those during
infancy. This is not true, as the defense mechanisms are more efficient compared with those of infancy.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
The patient is showing signs of magnesium toxicity, such as respiratory depression, hyporeflexia, and flushing.
Magnesium sulfate is a high-alert medication that can cause serious adverse effects if not monitored closely.
The nurse should stop the infusion immediately and notify the provider.
Choice A is wrong because calling for a stat magnesium sulfate level will not address the immediate problem of toxicity.
The nurse should act quickly to prevent further complications.
Choice B is wrong because administering oxygen will not reverse the effects of magnesium toxicity.
Oxygen may be helpful for respiratory distress, but it will not correct the underlying cause.
Choice D is wrong because hydralazine is an antihypertensive medication that lowers blood pressure.
The patient’s blood pressure is already within the normal range for a pregnant woman with preeclampsia (140-160/90-110 mm Hg).
Hydralazine may cause hypotension and fetal distress.
Correct Answer is A
Explanation
A brilliant, uniform red reflex in both eyes is a sign of a healthy retina and optic nerve. The red reflex is the reflection of light from the retina that varies in color depending on the patient’s skin tone. It can be seen by holding the ophthalmoscope directly in front of your eye and asking the patient to focus on a point in the distance.
Choice B is wrong because an abnormal finding would be an absent or asymmetric red reflex, which could indicate cataracts, retinal detachment, or other eye diseases.
Choice C is wrong because a possible visual defect would not affect the red reflex, but rather the visual acuity or field of vision of the patient.
A vision screening would involve testing the patient’s ability to read letters or numbers at different distances.
Choice D is wrong because small hemorrhages would not cause a brilliant, uniform red reflex, but rather dark spots or blotches on the retina that can be seen with the ophthalmoscope.
Hemorrhages can be caused by diabetes, hypertension, or trauma.
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