What is true regarding FAS and NAS?

Choice A reason:

FAS is caused by alcohol, and NAS is caused by opioids. This is the correct answer because FAS stands for fetal alcohol syndrome, which is a group of physical and mental defects that can occur in a baby when a woman drinks alcohol during pregnancy. NAS stands for neonatal abstinence syndrome, which is a group of problems that can happen when a baby is exposed to opioid drugs for a length of time while in their mother's womb.

Choice B reason:

FAS and NAS are both incurable. This is incorrect because FAS and NAS have different outcomes. FAS is incurable because the effects of alcohol on the developing brain and body are permanent. NAS, however, can be treated with medication and supportive care to help the baby cope with withdrawal symptoms and prevent complications.

Choice C reason:

FAS and NAS are both curable. This is incorrect because FAS is not curable, as explained above. NAS can be treated, but not cured, because some babies may have long-term problems such as developmental delays, behavioral issues, or learning difficulties.

Choice D reason:

FAS is caused by analgesics and NAS is caused by NSAIDs. This is incorrect because FAS is caused by alcohol, not analgesics, which are painkillers. NAS is caused by opioids, not NSAIDs, which are anti-inflammatory drugs. Analgesics and NSAIDs do not cause the same type of damage to the fetus or the newborn as alcohol and opioids do.

Choice A reason:

Obesity is not a common complication of phenylketonuria (PKU), a genetic disorder that causes increased levels of phenylalanine (an amino acid) in the body. Obesity may be related to other endocrine disorders, such as hypothyroidism or Cushing syndrome.

Choice B reason:

Diabetes insipidus is a condition that causes excessive thirst and urination due to a lack of antidiuretic hormone (ADH) or a problem with the kidneys' response to ADH. It is not caused by PKU, which affects the metabolism of phenylalanine.

Choice C reason:

Respiratory distress is not a typical symptom of PKU, although some newborns with PKU may have a musty odor in their breath, skin, or urine due to the buildup of phenylalanine.

Respiratory distress may be caused by other conditions, such as asthma, pneumonia, or congenital heart defects.

Choice D reason:

Cognitive impairment is the most serious complication of PKU if it is not diagnosed and treated early. High levels of phenylalanine can damage the brain and cause irreversible intellectual disability, neurological problems, and behavioral issues. Early intervention with a special diet that limits phenylalanine intake can prevent or reduce cognitive impairment in children with PKU.