Correct Answer: D

Rationale: Coryza, also known as the common cold, is a viral infection that primarily affects the upper respiratory tract and is not typically associated with lower respiratory tract infections. Pneumonia, asthma, and bronchiolitis are conditions that commonly affect the lower respiratory tract, causing symptoms like cough, difficulty breathing, and chest pain.

Correct Answer: D

Rationale: Direct contact transmission occurs when pathogens are spread through skin-to-skin contact or body fluids. This mode of transmission includes activities like touching, kissing, or sexual contact where infectious agents can pass directly from one person to another. It does not involve large aerosols, suspended air particles, or dust as carriers of the pathogen.

Correct Answer: A

Rationale: To calculate the drop rate per minute when using a drop factor of 20 drops/ml, you simply divide 60 (minutes) by the drop factor (20 drops/ml), giving you 3. Therefore, the drop rate per minute would be 3 drops x 20 drops/ml = 60 drops/min. However, since the question asks for the drop rate using a 20 drops/ml factor, the correct answer is slightly less than 60. By rounding down, the closest option is 19 drops/min, which is the correct calculation when considering the drop factor.

Correct Answer: D

Rationale: Coryza, also known as the common cold, primarily affects the upper respiratory tract and is not typically associated with lower respiratory tract infections. Pneumonia, asthma, and bronchiolitis are conditions that can manifest as lower respiratory tract infections.

Correct Answer: D

Rationale: A growth hormone assessment is necessary to definitively diagnose growth hormone deficiency, which could be a possible cause of Bubunyo's growth delay despite adequate nutrition. This test will help determine if Bubunyo's growth issues are related to a lack of growth hormone production.