Correct Answer: C

Rationale: Parkinson’s disease results from a decrease in dopaminergic (inhibitory) activity, leaving an imbalance with too much cholinergic (excitatory) activity. With an increase in dopamine, the neurotransmitter activity becomes more balanced, and symptoms are controlled.

Correct Answer: B

Rationale: In nephrotic syndrome, edema is a common symptom that is generalized and not easily noticeable, even by parents. However, an early sign that can be assessed by the nurse is periorbital edema, which refers to swelling around the eyes. This can be an initial indicator of nephrosis and may prompt further evaluation and intervention.

Correct Answer: C

Rationale: The correct answer is C: 'Dry, hacking cough.' A dry, hacking cough is a classic manifestation of pertussis. Pertussis typically presents with symptoms of an upper respiratory tract infection, starting with a persistent, severe, and uncontrollable cough that can worsen at night. This cough is often followed by a high-pitched 'whoop' sound as the patient tries to catch their breath, hence the term 'whooping cough.' In contrast, options A, B, and D are not typically associated with pertussis. Inflamed throat with exudate may suggest a bacterial throat infection like streptococcal pharyngitis, purulent eye drainage is more indicative of a bacterial conjunctivitis, and Koplik spots on the buccal mucosa are specific to measles. Therefore, recognizing the dry, hacking cough as a manifestation of pertussis is crucial for early identification and appropriate management of the disease.

Correct Answer: D

Rationale: Directive adults can inhibit spontaneous play and creativity, which are essential for fostering playfulness in children. When adults are too directive, children may feel constrained and less likely to engage in imaginative and free play. Encouraging independence and allowing children to explore and create their play scenarios can enhance playfulness and creativity.

Correct Answer: C

Rationale: The correct test for an x-ray examination of the bladder and urethra before and during micturition is a voiding cystourethrogram. This procedure allows visualization of the bladder and urethra while the patient is urinating to assess for any abnormalities in the anatomy or function of these structures.