50 Most Important Questions and Answers for CHO Exam 2025 | Community Health Officer Preparation Guide

General Public Health & Epidemiology

  1. WHO Definition of Health:
    A state of complete physical, mental, and social well-being and not merely the absence of disease.

  2. Incidence:
    Number of new cases in a specific period.
    Prevalence: Total number of cases (new + existing).

  3. Herd Immunity:
    Resistance to the spread of contagious disease when a large part of the population is immune.

  4. Levels of Prevention:

    • Primary: Health promotion (e.g., vaccination)

    • Secondary: Early diagnosis (e.g., screening)

    • Tertiary: Disability limitation (e.g., rehab)

  5. Primary Health Care Components:

    • Health education

    • Nutrition

    • Water & sanitation

    • MCH care

    • Immunization

    • Control of endemic diseases

    • Treatment of common diseases

    • Essential drugs

  6. Isolation vs Quarantine:

    • Isolation: For infected persons

    • Quarantine: For exposed but asymptomatic individuals

  7. Iceberg Phenomenon:
    Visible clinical cases are just a small part; subclinical cases are hidden.

  8. Outbreak Investigation Steps:

    • Prepare

    • Confirm

    • Define case

    • Data collection

    • Hypothesis

    • Testing

    • Control measures

    • Communication

  9. Surveillance:
    Ongoing collection and analysis of health data.
    Types: Passive, Active, Sentinel

  10. ASHA's Role:
    Community mobilizer, health educator, and service provider under NRHM.


Communicable Diseases

  1. TB Transmission:
    Airborne droplets from an infected person.

  2. Dengue Symptoms:
    High fever, rash, joint pain, retro-orbital pain.
    Prevention: No stagnant water, mosquito nets

  3. DOTS:
    Directly Observed Treatment Short-course for TB.

  4. Malaria Signs:
    Fever with chills, headache, vomiting.
    Treatment: ACT (Artemisinin-based combination therapy)

  5. Waterborne Diseases:
    Cholera, typhoid, hepatitis A, diarrhea.
    Prevention: Safe drinking water, hygiene

  6. UIP Vaccines:
    BCG, OPV, Pentavalent, Measles, Hepatitis B, etc.

  7. Cold Chain System:
    System to maintain vaccine potency from manufacturer to end user.

  8. Biomedical Waste Steps:
    Segregation → Collection → Storage → Transport → Treatment → Disposal

  9. STI/RTI Prevention:
    Condom use, health education, early treatment.

  10. HIV/AIDS High-risk Groups:
    Sex workers, IV drug users, MSM, transfusion recipients.


Non-Communicable Diseases (NCDs)

  1. Hypertension/Diabetes Risk Factors:
    Obesity, stress, poor diet, inactivity, smoking.

  2. BMI Classification:
    Underweight: <18.5
    Normal: 18.5–24.9
    Overweight: 25–29.9
    Obese: ≥30

  3. CHO’s NCD Role:
    Screening, counseling, treatment follow-up, health education.

  4. Lifestyle Modifications:
    Diet, exercise, no smoking, moderate alcohol.

  5. NPCDCS:
    National Programme for Prevention and Control of Cancer, Diabetes, Cardiovascular Diseases and Stroke.


Maternal and Child Health (MCH)

  1. Antenatal Care Components:

    • Minimum 4 visits

    • TT injection

    • IFA tablets

    • Weight/BP check

  2. CHO Role in Institutional Delivery:
    Counseling, referral, monitoring high-risk cases.

  3. Janani Suraksha Yojana:
    Incentives to promote institutional delivery.

  4. Newborn Care Steps:
    Warmth, breastfeeding, cord care, infection prevention.

  5. IMNCI:
    Integrated Management of Neonatal and Childhood Illness—focuses on child survival.


National Health Programs & Policies

  1. Ayushman Bharat Aim:
    Universal Health Coverage through HWC and PM-JAY.

  2. Health and Wellness Centre Role:
    Delivering comprehensive primary healthcare services.

  3. HWC Services:

    • NCD care

    • Mental health

    • Family planning

    • Maternal care

    • Child health

  4. RMNCH+A:
    Reproductive, Maternal, Newborn, Child and Adolescent Health.

  5. National Health Policy 2017 Goals:

    • Achieve Universal Health Coverage

    • Increase government health expenditure to 2.5% of GDP


Environmental & Occupational Health

  1. Safe Water:
    Free from pathogens, chemicals.
    Test: H2S strip, coliform test

  2. Air Pollution Effects:
    Asthma, bronchitis, heart disease.

  3. Solid Waste Management:
    Segregation, collection, transport, disposal.

  4. Hand Hygiene Importance:
    Prevents infections, especially diarrheal and respiratory.

  5. Noise Pollution Effects:
    Hearing loss, sleep disturbance, stress.


Reproductive Health & Family Planning

  1. Family Planning Methods:

    • Spacing: OCPs, condoms, IUCD

    • Permanent: Tubectomy, vasectomy

  2. IUCD Contraindications:
    PID, pregnancy, undiagnosed bleeding, distorted uterus.

  3. Emergency Contraception:
    Levonorgestrel pill within 72 hrs of unprotected sex.

  4. CHO in Adolescent Health:
    Counseling on nutrition, menstruation, hygiene, mental health.


Health Education & Communication

  1. Health Education Principles:
    Interest, participation, motivation, feedback.

  2. Types of Communication:
    Verbal, non-verbal, visual aids, mass media.

  3. IEC & BCC:

    • IEC: Information, Education, Communication

    • BCC: Behavior Change Communication


Miscellaneous & CHO Duties

  1. CHO in Community Diagnosis:
    Identify community health problems through survey/data.

  2. Referral Mechanisms:
    Primary → Secondary → Tertiary care.

  3. VHSNC Role:
    Local level health planning, sanitation monitoring, and community mobilization.



Comments

Popular posts from this blog

Clinical Pathology Notes || Various blood and bone marrow tests in assessment and monitoring of disease conditions || Hemoglobin || RBC, White cell & platelet counts || Bleeding time, clotting time and prothrombine time || Blood grouping and cross matching || Blood chemistry || Blood culture || Serological and immunoligical tests || Other blood tests - Examination of Bone marrow || Methods of collection of blood specimen for various clinical pathology, biochemistry, microbiology tests, inference and normal value

The drugs of choice for some of the top most important diseases || Key Medications for Common Ailments || Critical Drugs and Dosages for Top Diseases || Drugs of Choice for Major Diseases

Medical Instruments: Comprehensive Guide for Healthcare Professionals || Medical Instruments and Their Uses || Essential Medical Instrument Handbook