RN Nursing Care of Children Online Practice 2019 A

Correct Answer: B

Rationale: The correct answer is Chickenpox (choice B). Chickenpox is highly communicable and requires strict isolation to prevent the spread of the virus through direct contact, droplet transmission, and contaminated objects. Mumps (choice A) is also contagious but does not typically require strict isolation. Exanthema subitum (roseola) (choice C) and Erythema infectiosum (fifth disease) (choice D) are not as highly contagious as chickenpox and do not necessitate strict isolation.

Correct Answer: C

Rationale: Providing 8 oz of juice daily is excessive for an 8-month-old infant and can displace other nutrient-rich foods or formulas that are necessary for growth, especially in an infant with FTT.

Correct Answer: A

Rationale: The correct answer is A: A white reflex. The 'white reflex' or leukocoria is a common sign of retinoblastoma. It occurs when the light reflects off the tumor in the eye, giving the pupil a white appearance instead of the normal red reflex. Blue-tinged sclerae (choice B) and yellow-tinged sclerae (choice D) are not typical manifestations of retinoblastoma. A red reflex (choice C) is the normal reflection seen in the eye when light is shone on it and is not associated with retinoblastoma.

Correct Answer: B

Rationale: The correct answer is Chickenpox (choice B). Chickenpox is highly communicable and requires strict isolation to prevent the spread of the virus through direct contact, droplet transmission, and contaminated objects. Mumps (choice A) is also contagious but does not typically require strict isolation. Exanthema subitum (roseola) (choice C) and Erythema infectiosum (fifth disease) (choice D) are not as highly contagious as chickenpox and do not necessitate strict isolation.

Correct Answer: A

Rationale: Teratogens are substances that can cause congenital abnormalities, especially during the first trimester when organogenesis occurs. Choice A, Teratogens, is the correct answer as it specifically refers to substances that cause physical defects in the developing embryo. Choices B, Heterozygous, C, Inborn errors, and D, Multifactorial, are incorrect as they do not directly relate to substances that cause physical defects in embryos during organogenesis.