In the investigation of an epidemic, you compare the present frequency of the disease with the usual frequency at this time of the year in this community. This is done during which stage of the investigation?

Correct Answer: A

Rationale: The correct answer is A: Establishing the epidemic. During this stage, comparing the present frequency of the disease with the usual frequency helps determine if there is a significant increase in cases, indicating the presence of an epidemic. This step is crucial in identifying the outbreak and initiating appropriate control measures. Choice B, Testing the hypothesis, is incorrect as this stage involves conducting experiments to test a formulated hypothesis, not comparing frequency data. Choice C, Formulation of the hypothesis, is incorrect as this stage focuses on developing a hypothesis based on initial observations, not on comparing current and usual frequencies. Choice D, Appraisal of facts, is incorrect as this stage involves evaluating all available information, not specifically comparing disease frequencies in relation to an epidemic.

Correct Answer: C

Rationale: The correct answer is C because providing care based on identified health needs of the people is a key principle of primary health care. This approach focuses on addressing the specific health needs of individuals and communities, promoting community participation and empowerment. Health workers play a crucial role in understanding and addressing the unique health challenges faced by the community. Option A is incorrect because providing health services for free does not necessarily indicate success in the primary health care approach. Option B is incorrect as empowering local officials is important but not a direct indicator of success in primary health care. Option D is also incorrect because sustainability of health programs is essential but not the sole indicator of success in the primary health care approach.

Correct Answer: D

Rationale: Step-by-step rationale: 1. Lagundi is known for its medicinal properties in treating fever, headache, and cough. 2. Lagundi has been traditionally used in Philippine indigenous medicine for respiratory ailments. 3. Studies have shown Lagundi's effectiveness in relieving symptoms of cough and asthma. 4. It is essential to have knowledge of indigenous technology to appreciate the benefits of using Lagundi. Summary: A: Sambong is used for urinary tract infections. B: Tsaang gubat is used for stomach-related issues. C: Akapulko is used for skin diseases. D: Lagundi is the correct answer for fever, headache, and cough based on its proven medicinal properties.

Correct Answer: A

Rationale: The correct answer is A: Yin. In traditional Chinese medicine, Yin represents the yielding, negative, and feminine force. Yin is associated with qualities such as darkness, cold, passivity, and receptivity. It is essential for maintaining balance with Yang, the opposing force. Yang represents the active, positive, and masculine energy. Qi refers to the vital life force energy, not specifically related to Yin. Chai is not a term used in traditional Chinese medicine. Therefore, the correct choice is A: Yin.

Correct Answer: A

Rationale: The correct answer is A: Two-way referral system. This demonstrates inter-sectoral linkages as it involves the seamless transfer of patients between different sectors such as healthcare and social services. It promotes collaboration and communication among different sectors for comprehensive care. In contrast, B (Team approach) focuses on collaboration within a single sector, C (Endorsement done by a midwife to another midwife) is limited to a specific profession, and D (Cooperation between PHN and public school teacher) involves collaboration between two specific roles rather than entire sectors.