Middle ear problem, hearing

Correct Answer: A

Rationale: The correct answer is A: Obstruction. Middle ear problems can lead to hearing issues due to blockages or obstruction in the ear canal or Eustachian tube. This obstruction can prevent sound waves from reaching the inner ear, affecting hearing. Choices B, C, and D do not directly relate to middle ear problems causing hearing issues. Cochlea is a structure in the inner ear responsible for converting sound vibrations into electrical signals, which is not the primary cause of hearing problems in the middle ear. Choices C and D are likely irrelevant or incomplete options, as they do not provide a logical connection to middle ear problems affecting hearing.

Correct Answer: A

Rationale: The correct answer is A: Autoclave. An autoclave is the most effective method for sterilizing equipment in a community setting due to its ability to reach high temperatures and pressure to kill all microorganisms. Handwashing (B) is important for reducing the spread of germs but does not achieve sterilization. Boiling water (C) can kill some bacteria and viruses but may not be sufficient for sterilization. Choice D is not provided, so it is not a valid option. Autoclaving ensures complete sterilization, making it the best choice for community sterilization needs.

Correct Answer: A

Rationale: Fluoxetine (Prozac): A selective serotonin reuptake inhibitor (SSRI) which reduces the uptake of serotonin in the brain and is taken to treat depression. Loss of sexual desire is a well-documented side effect.

Correct Answer: A

Rationale: Psychoanalysis: A psychodynamic approach where dream analysis is a key technique to uncover unconscious conflicts. The provided 'Case Study' rationale seems incorrect; the correct context is psychoanalysis.

Correct Answer: B

Rationale: Checking for damage prevents potential electrical hazards.