Which of the following are characteristics of conservation in school-aged children? (Select All that Apply.)
Thinking that cutting a sandwich into more pieces means there is more food
Believing that pouring water from a short, wide cup into a tall, narrow cup increases the amount of water
Understanding that the amount of a substance remains the same even if its appearance changes
Recognizing that a ball of clay can be flattened and rolled back into a ball without changing its amount
Believing that a taller, narrower glass contains more liquid than a shorter, wider glass
Correct Answer : C,D
A. This reflects a lack of understanding of conservation, as cutting a sandwich does not increase the quantity of food.
B. This belief shows a misunderstanding of conservation, where children may not recognize that the volume remains constant regardless of the container's shape.
C. Understanding that the amount of a substance remains the same even if its appearance changes is a key characteristic of conservation.
D. Recognizing that a ball of clay can be flattened and rolled back into a ball without changing its amount also demonstrates an understanding of conservation.
E. This belief indicates a misunderstanding of conservation, as the amount of liquid does not change based on the height or width of the container.
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Correct Answer is B
Explanation
A. Supraventricular tachycardia (SVT) typically has identifiable P waves; the absence of P waves suggests a different condition.
B. Atrial fibrillation is characterized by an irregular rhythm, inability to identify P waves, and varying intervals. This interpretation aligns with the client's ECG findings.
C. Sinus bradycardia would show identifiable P waves and a regular rhythm with a heart rate less than 60 bpm, which does not match the provided information.
D. First-degree heart block would also show identifiable P waves and regularity in the rhythm with a prolonged PR interval, which is not indicated here.
Correct Answer is C
Explanation
A. The meningococcal (MCV4) vaccine is typically recommended for preteens and adolescents, usually starting at age 11.
B. The hepatitis B vaccine is typically administered at birth, 1-2 months, and 6-18 months, so a 4-year-old may already have received this vaccine.
C. The varicella (VAR) vaccine is recommended for children at ages 12-15 months and again at 4-6 years, making it appropriate for a 4-year-old child.
D. The Haemophilus influenza type b (Hib) vaccine is usually given to children in a series before 5 years of age, but it is more commonly completed by age 2-3 years. The 4-year-old may already be up to date with this vaccine.