Which common childhood communicable disease may cause severe defects in the fetus when it occurs in its congenital form?
Rubella
Varicella-zoster
Rubeola
Mumps
The Correct Answer is A
A. Rubella:
Rubella is a viral infection that, when contracted by a pregnant woman during the first trimester, can lead to congenital rubella syndrome (CRS) in the developing fetus. CRS can result in severe birth defects, including heart abnormalities, hearing impairments, and vision problems.
B. Varicella-zoster:
Varicella-zoster virus causes chickenpox. While chickenpox can cause complications in certain populations, it is not specifically associated with severe defects in the fetus when the mother is infected during pregnancy.
C. Rubeola:
Rubeola, commonly known as measles, can lead to complications, but it is not as strongly associated with severe defects in the fetus if the mother is infected during pregnancy compared to rubella.
D. Mumps:
Mumps is generally not associated with severe defects in the fetus when the mother is infected during pregnancy. However, mumps infection during pregnancy can pose risks to the mother's health.
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Related Questions
Correct Answer is D
Explanation
A. Approximately 18 lbs. 6 oz.:
This option represents an overestimation of the expected weight. Doubling the birth weight of 8 lbs. 2 oz. would be 16 lbs. 4 oz., so this choice is higher than the expected weight.
B. Approximately 14 lbs. 8 oz.:
This option represents an underestimation of the expected weight. Doubling the birth weight of 8 lbs. 2 oz. would be 16 lbs. 4 oz., so this choice is lower than the expected weight.
C. Approximately 24 lbs. 4 oz.:
This option represents a significant overestimation of the expected weight. Doubling the birth weight of 8 lbs. 2 oz. would be 16 lbs. 4 oz., so this choice is much higher than the expected weight.
D. Approximately 16 lbs. 4 oz.:
This option is the correct estimate based on doubling the birth weight of 8 lbs. 2 oz. It accurately reflects the expected weight of a 6-month-old child according to developmental milestones.
Correct Answer is ["0.1696"]
Explanation
To calculate the ordered dose by the physician in mg/kg/dose, we need to convert the infant's weight from pounds and ounces to kilograms. One pound is equal to 0.4536 kg and one ounce is equal to 0.02835 kg. Therefore, the infant's weight in kilograms is:
6 x 0.4536 + 3 x 0.02835 = 2.948 kg
The ordered dose by the physician is 0.5 mg IV q 2 hours prn. To find the dose in mg/kg/dose, we divide the dose in mg by the weight in kg:
0.5 / 2.948 = 0.1696 mg/kg/dose
The recommended dosage for a child is 0.1-0.2 mg/kg/dose q2-4 hours prn. The ordered dose by the physician falls within this range, so it is a safe dosage for the infant.
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