A nurse is reviewing the medical record of a toddler who has moderate dehydration. Which of the following findings should the nurse expect?
Decreased hematocrit
Increased respiratory rate
Decreased heart rate
Increased platelet count
The Correct Answer is B
A. Decreased hematocrit: Hematocrit usually increases in dehydration due to the concentration of red blood cells in a smaller volume of plasma.
B. Increased respiratory rate: Dehydration can lead to tachypnea (increased respiratory rate) as the body attempts to compensate for the decreased blood volume and maintain oxygen delivery.
C. Decreased heart rate: Dehydration typically causes tachycardia (increased heart rate) as the body tries to maintain adequate blood circulation and pressure.
D. Increased platelet count: Dehydration does not typically affect platelet count significantly, though it may concentrate blood components, including platelets, making them appear elevated on a lab test.
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Related Questions
Correct Answer is B
Explanation
A. Hepatitis B (HBV): The Hepatitis B vaccine is typically completed in the infant stage, and a 5-year-old with up-to-date vaccinations would not need a booster for school entry. This is not included in the pre-kindergarten vaccine schedule.
B. Measles, mumps, and rubella (MMR): The MMR vaccine is part of the pre-kindergarten immunization schedule. A second dose is recommended between ages 4 and 6 to ensure immunity before school entry.
C. Haemophilus influenzae type B (Hib): The Hib vaccine is typically administered to infants and young children, and a 5-year-old with up-to-date immunizations would already be fully vaccinated against Hib. No booster is required at this age.
D. Pneumococcal conjugate vaccine (PCV): The PCV vaccine series is usually completed in infancy, and a 5-year-old with current vaccinations would not require a booster. This vaccine is not part of the pre-kindergarten schedule.
Correct Answer is D
Explanation
A. Beriberi: Incorrect. Caused by a deficiency in thiamine (Vitamin B1), not linked to high milk consumption.
B. Dehydration: Incorrect. Milk intake can contribute to hydration, though it should not replace water.
C. Diabetes mellitus: Incorrect. High milk consumption is not directly linked to diabetes in toddlers.
D. Iron-deficiency anemia: Correct. Excessive milk can lead to iron-deficiency anemia because milk is low in iron and can interfere with iron absorption from other foods, leading to reduced iron intake.
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