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.
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Related Questions
Correct Answer is C
Explanation
Magnesium sulfate is given to women with preeclampsia and eclampsia to prevent and treat convulsions.
Magnesium sulfate is a mineral that reduces seizure risks in women with preeclampsia. A healthcare provider will give the medication intravenously. Sometimes, it’s also used to prolong pregnancy for up to two days. This allows drugs that speed up your baby’s lung development to be administered.
Choice A is wrong because magnesium sulfate does not improve patellar reflexes or increase respiratory efficiency. In fact, it may cause decreased or absent deep tendon reflexes and respiratory depression as side effects.
Choice B is wrong because magnesium sulfate does not shorten the duration of labor. It may actually prolong labor by inhibiting uterine contractions.
Choice D is wrong because magnesium sulfate does not prevent a boggy uterus or lessen the lochial flow. It has no effect on uterine tone or bleeding after delivery.
Correct Answer is B
Explanation
Measles (rubeola) is a communicable disease that is characterized by Koplik’s spots, which are clustered, white lesions on the buccal mucosa opposite the lower molars. They appear two to three days before the measles rash and are pathognomonic for measles.
Choice A is wrong because rubella is a different viral infection that causes a mild rash and fever, but does not have Koplik’s spots.
Choice C is wrong because chickenpox (varicella) is caused by the varicella-zoster virus and produces fluid-filled blisters on the skin, not white spots in the mouth.
Choice D is wrong because exanthema subitum (roseola) is caused by the human herpesvirus 6 or 7 and causes a high fever followed by a pink rash on the trunk and neck, but no oral lesions.
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