When assessing a 2.5-year-old, the nurse would expect the toddler to have:
12 deciduous teeth.
20 deciduous teeth.
6 deciduous and 12 permanent teeth.
16 deciduous and 2 permanent teeth.
The Correct Answer is B
Choice A rationale
The average number of deciduous teeth at 2.5 years of age is 20. The first set of teeth, also known as primary or milk teeth, typically begins to erupt around 6 months of age and all 20 are generally present by the time a child is 3 years old. Twelve deciduous teeth would be an expected number for a younger toddler, around 1 to 1.5 years old.
Choice B rationale
A 2.5-year-old child should have a full set of 20 deciduous teeth. These teeth typically erupt in a predictable sequence, starting with the central incisors and ending with the second molars, which usually appear between 2 and 3 years of age. By 30 months, all 20 primary teeth are typically present and functional for chewing and speech development.
Choice C rationale
This combination is incorrect for a 2.5-year-old. The first permanent teeth, the molars, do not typically begin to erupt until around age 6. A 2.5-year-old would only have deciduous teeth, and the number would be 20. The permanent teeth are not yet present at this age, as the jaw is still growing.
Choice D rationale
This combination is incorrect. A 2.5-year-old has a full set of 20 deciduous teeth. The presence of permanent teeth at this age is not typical. The first permanent teeth erupt between ages 6 and 7. The number of deciduous teeth would also be an incorrect count, as 16 deciduous teeth would be present in a younger toddler.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A rationale
A saturated perineal pad within 15 minutes suggests a significant hemorrhage. The most common cause of postpartum hemorrhage is uterine atony, a lack of uterine muscle tone. Assessing the fundus first allows the nurse to determine if the uterus is firm or boggy, a key indicator of atony, and to perform a fundal massage if needed to stimulate contractions and reduce bleeding.
Choice B rationale
While an IV infusion may be necessary to restore blood volume, initiating it is not the first action. The nurse must first determine the cause of the bleeding. The fundus assessment provides critical diagnostic information and an immediate opportunity for intervention (massage) that could resolve the bleeding before initiating a fluid resuscitation.
Choice C rationale
Assessing vital signs is important but should not be the first action. In a situation of heavy bleeding, the priority is to identify and address the source of the hemorrhage. A fundal assessment provides this information immediately. Vital signs will change in response to blood loss, but the fundal assessment provides the most direct and immediate action to stop the bleeding.
Choice D rationale
The health care provider must be notified, but this action is not the first step. The nurse must first gather essential assessment data, such as the condition of the fundus, and initiate immediate interventions like a fundal massage if indicated. Notifying the provider without this information will delay appropriate care.
Correct Answer is D
Explanation
Choice A rationale
Chronic anemia is not a primary complication of Kawasaki syndrome. The disease process is a vasculitis that primarily affects medium-sized arteries, leading to inflammation and damage. The acute inflammatory state can cause temporary anemia, but it is not a chronic sequela prevented by IVIG and aspirin.
Choice B rationale
Cardiac arrhythmias are not the primary long-term complication targeted by IVIG and aspirin therapy. The main concern is the weakening of the coronary artery walls due to inflammation, which can lead to the formation of aneurysms. Arrhythmias can occur but are not the main focus of this specific treatment.
Choice C rationale
Acute respiratory distress is not a typical complication of Kawasaki syndrome. The syndrome is a systemic vasculitis, not a primary pulmonary disease. Respiratory symptoms like cough or runny nose are part of the initial presentation but are not the serious, life-threatening complication that IVIG and aspirin are given to prevent.
Choice D rationale
Coronary artery aneurysms are the most serious long-term complication of Kawasaki syndrome. The intense inflammation of the blood vessel walls, known as vasculitis, can lead to weakening and bulging of the coronary arteries. High-dose aspirin and IVIG reduce this systemic inflammation, thereby preventing the formation of these aneurysms.
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