Criteria of patent ductus arteriosus (PDA)?

Correct Answer: A

Rationale: Wide pulse pressure is a characteristic feature of PDA due to continuous blood flow between the aorta and pulmonary artery.

Correct Answer: D

Rationale: Weight gain is a common side effect of Depo-provera, along with irregular bleeding patterns.

Correct Answer: A

Rationale: Tower building primarily involves visual-motor coordination.

Correct Answer: B

Rationale: Air conduction of sound in the ear involves the transmission of sound waves through the air from the outer ear canal to the middle ear, where they cause the tympanic membrane (eardrum) to vibrate. These vibrations are then transmitted through the ossicles (tiny bones in the middle ear) to the inner ear, where they ultimately stimulate the hair cells in the cochlea to create the auditory nerve impulses. While air conduction is the most common method of sound transmission, it is less efficient than bone conduction. Bone conduction is the transmission of sound vibrations directly to the inner ear through the bones in the skull. This method bypasses the outer and middle ear and is often more efficient in conducting sound, especially at higher frequencies or in individuals with hearing loss related to the outer or middle ear.

Correct Answer: D

Rationale: Tachycardia is an early compensatory response to shock to maintain cardiac output.