Nokea
Contact lenses are associated with
- A. contact allergy
- B. allergic conjunctivitis
- C. vernal keratoconjunctivitis
- D. giant papillary conjunctivitis
Correct Answer: D
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
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Which is an appropriate action when an infant becomes apneic?
- A. Shake vigorously
- B. Roll head side to side
- C. Hold by feet upside down with head supported
- D. Gently stimulate trunk by patting or rubbing
Correct Answer: D
Rationale: When an infant becomes apneic (stops breathing), the appropriate action is to gently stimulate the trunk by patting or rubbing. This can help stimulate the infant to resume breathing. It is important to avoid any rough handling or shaking as this can cause harm to the infant. Rolling the head side to side or holding the infant by the feet upside down is not recommended in this situation and could potentially be dangerous. Gently stimulating the trunk is a safe and appropriate response to help the infant start breathing again.
Although children with Wilms tumor have a favorable prognosis, there are some adverse prognostic factors in children with Wilms tumor EXCEPT
- A. large tumors
- B. anaplastic histology
- C. loss of heterozygosity at chromosome 1p and 16q
- D. young age at diagnosis
Correct Answer: D
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Drug reactions to penicillins and cephalosporins are common in pediatrics. Risk factors for drug reactions include all the following EXCEPT
- A. previous drug exposure
- B. increasing age (>20 years)
- C. higher dose
- D. intermittent repeated exposure
Correct Answer: B
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.
Which neurotransmitter mediates the sympathetic response?
- A. Norepinephrine
- B. Prostaglandin
- C. Acetylcholine
- D. Serotonin
Correct Answer: A
Rationale: The sympathetic nervous system is responsible for our "fight or flight" response to stressful situations. Norepinephrine is the primary neurotransmitter that mediates the sympathetic response, acting on adrenergic receptors in various target tissues. It helps to increase heart rate, elevate blood pressure, dilate air passages in the lungs, and mobilize energy stores in the body to prepare for physical exertion or stress. Acetylcholine is another neurotransmitter involved in the sympathetic nervous system, but norepinephrine is the primary mediator of the fight or flight response.
Which is a bright red, rubbery nodule with a rough surface and a well-defined margin that may be present at birth?
- A. Port-wine stain
- B. Juvenile melanoma
- C. Cavernous hemangioma
- D. Strawberry hemangioma
Correct Answer: D
Rationale: A strawberry hemangioma, also known as an infantile hemangioma, is a bright red, rubbery nodule with a rough surface and a well-defined margin that may be present at birth or appear shortly after. This common type of benign vascular tumor occurs on the skin and typically grows rapidly during the first few months of life before eventually shrinking and disappearing by early childhood. It is composed of an overgrowth of blood vessels and is considered a benign condition that generally does not require treatment unless it interferes with vision, breathing, or other essential functions.