What is the true description of a 7-year-old child expressing fear of being injured by a car?

Correct Answer: C

Rationale: Separation anxiety involves excessive fear or worry about being away from home or caregivers. A child fearing injury by a car could indicate separation anxiety if they associate leaving with potential harm.

Correct Answer: C

Rationale: Dosing schedule does not directly increase the risk of adverse drug reactions, whereas genetic factors and atopy do.

Correct Answer: C

Rationale: Menstruation should typically occur within 3 years of thelarche.

Correct Answer: B

Rationale: Gardner syndrome does not typically increase radiation sensitivity, whereas the other conditions involve DNA repair defects or chromosomal instability.

Correct Answer: C

Rationale: The prevalence of mental health issues in childhood is generally estimated to be around 30%. This figure reflects the significant number of children who experience some form of mental health challenge during their development.

Correct Answer: A

Rationale: Chromosomal breakage test helps diagnose Fanconi anemia, a genetic disorder characterized by congenital anomalies, bone marrow failure, and increased chromosomal fragility.

Correct Answer: A

Rationale: Enthesitis, inflammation at the attachment sites of tendons or ligaments to bone, is a hallmark feature of psoriatic arthritis.

Correct Answer: B

Rationale: Gardner syndrome does not typically increase radiation sensitivity, whereas the other conditions involve DNA repair defects or chromosomal instability.

Correct Answer: A

Rationale: In hypertonic dehydration, water loss exceeds sodium loss, leading to preserved skin turgor. High sodium levels cause intracellular dehydration, particularly affecting the CNS, leading to complications such as seizures.