The nurse is providing education on epidemiology to a nursing student. Which of the following statements indicates the importance of epidemiology to the community health nurse? SELECT ALL THAT APPLY

Choice A reason: Plantar flexion is the movement of the foot that points the toes downward. It is not a test for gait, but rather a test for muscle strength and nerve function in the lower leg.

Choice B reason: Romberg is a test for balance and coordination that involves asking the client to stand with their feet together and arms at their sides, first with their eyes open and then with their eyes closed. If the client sways or falls when their eyes are closed, it indicates a problem with their proprioception, which is the sense of position and movement of the body. Ataxia is a condition that affects proprioception and causes impaired gait, so Romberg is an appropriate test for it.

Choice C reason: Achilles reflex is the contraction of the calf muscle when the Achilles tendon is tapped. It is not a test for gait, but rather a test for spinal cord function and nerve damage in the lower leg.

Choice D reason: Patellar reflex is the extension of the lower leg when the patellar tendon is tapped. It is not a test for gait, but rather a test for spinal cord function and nerve damage in the upper leg.

Choice A reason: Mitral valve disease is not a disorder that makes clients especially vulnerable to ozone effects, as it does not affect the respiratory system. Mitral valve disease is a condition that affects the mitral valve, which is the valve that separates the left atrium and the left ventricle of the heart. Mitral valve disease can cause the valve to become narrow (stenosis) or leaky (regurgitation), affecting the blood flow and oxygen delivery to the body. Mitral valve disease can cause symptoms such as shortness of breath, fatigue, chest pain, palpitations, and swelling of the legs.

Choice B reason: Asthma is a disorder that makes clients especially vulnerable to ozone effects, as it affects the respiratory system. Asthma is a chronic inflammatory condition that causes the airways to become narrow, swollen, and sensitive to triggers such as allergens, irritants, infections, or exercise. Asthma can cause symptoms such as wheezing, coughing, chest tightness, and difficulty breathing. Ozone is a gas that is formed when sunlight reacts with pollutants in the air. Ozone can irritate the lungs and worsen asthma symptoms by causing inflammation, bronchoconstriction, and mucus production. Ozone can also reduce lung function and increase the risk of respiratory infections.

Choice C reason: Nasal polyps are not a disorder that makes clients especially vulnerable to ozone effects, as they do not affect the respiratory system. Nasal polyps are benign growths that form in the lining of the nose or sinuses. Nasal polyps can cause symptoms such as nasal congestion, runny nose, postnasal drip, loss of smell or taste, headache, and snoring. Nasal polyps are usually associated with chronic inflammation or allergies, but their exact cause is unknown.

Choice D reason: Seasonal allergies are not a disorder that makes clients especially vulnerable to ozone effects, as they do not affect the respiratory system. Seasonal allergies are allergic reactions that occur during certain times of the year when pollen or mold spores are high in the air. Seasonal allergies can cause symptoms such as sneezing, itching, watery eyes, runny nose, and sore throat. Seasonal allergies are caused by an overreaction of the immune system to harmless substances in the environment.