A nurse is caring for an older adult client who has a terminal illness and is ventilator dependent. The client is alert and oriented and he wants to discontinue use of the ventilator. The nurse should be aware that continued treatment against the client’s wishes is a violation of which of the following ethical principles?

Choice A reason: Eliciting the gag reflex is not a valid way to assess cranial nerve III. The gag reflex is a protective mechanism that prevents choking or aspiration by triggering a contraction of the pharyngeal muscles when the back of the throat is stimulated. The gag reflex is mediated by cranial nerves IX and X, not III.

Choice B reason: Checking the pupillary response to light is a reliable way to assess cranial nerve III. The pupillary response to light is a reflex that causes the pupil to constrict when exposed to bright light and dilate when exposed to dim light. This reflex helps to regulate the amount of light that enters the eye and protects the retina from damage. The pupillary response to light is controlled by cranial nerve III, which innervates the sphincter pupillae muscle that constricts the pupil.

Choice C reason: Observing for facial symmetry is not a relevant way to assess cranial nerve III. Facial symmetry is the degree of similarity between the two halves of the face. Facial symmetry can be affected by various factors, such as genetics, aging, or facial nerve palsy. Facial nerve palsy is a condition that causes weakness or paralysis of the muscles that control facial expression. Facial nerve palsy is caused by damage to cranial nerve VII, not III.

Choice D reason: Testing visual acuity is not a sufficient way to assess cranial nerve III. Visual acuity is the ability to see fine details and distinguish objects at a distance. Visual acuity depends on various factors, such as the clarity of the lens and cornea, the shape of the eyeball, and the function of the retina. Visual acuity is mainly affected by cranial nerve II, which carries visual information from the retina to the brain. Cranial nerve III does not directly influence visual acuity, but it does innervate some of the muscles that move the eye and enable binocular vision.

Choice A reason: This is incorrect. Taking the albuterol before taking the cromolyn is not necessary. Albuterol and cromolyn are both used to treat asthma, but they have different mechanisms of action. Albuterol is a bronchodilator that relaxes the muscles around the airways and opens them up, making it easier to breathe. Cromolyn is a mast cell stabilizer that prevents the release of substances that cause inflammation and allergy symptoms in the airways. Albuterol is used to relieve acute asthma attacks, while cromolyn is used to prevent chronic asthma symptoms. The nurse should advise the client to use albuterol as needed for quick relief, and to use cromolyn regularly as prescribed to prevent asthma flareups.

Choice B reason: This is incorrect. Using both medications immediately after exercising is not recommended. Exercise can trigger asthma symptoms in some people, such as wheezing, coughing, or shortness of breath. This is called exercise induced bronchoconstriction (EIB) or exercise induced asthma (EIA). The nurse should advise the client to use albuterol 15 to 30 minutes before exercising to prevent EIB or EIA, and to avoid exercising in cold, dry, or polluted air. The nurse should also instruct the client to use cromolyn at least 15 minutes before exercising, as it takes time to work and does not provide immediate relief. The nurse should also tell the client to stop exercising and use albuterol if asthma symptoms occur during or after exercising.

Choice C reason: This is incorrect. Using cromolyn immediately if the breathing begins to feel tight is not effective. Cromolyn is not a rescue medication that can provide quick relief of asthma symptoms. It is a preventive medication that works by reducing the inflammation and sensitivity of the airways over time. The nurse should advise the client to use albuterol instead of cromolyn if the breathing begins to feel tight, as albuterol can rapidly open up the airways and ease the breathing. The nurse should also instruct the client to seek medical attention if the albuterol does not work or if the symptoms get worse.

Choice D reason: This is correct. Administering the medications 10 minutes apart is good practice. Cromolyn and albuterol can be used together to treat asthma, but they should not be mixed in the same nebulizer, as they may not be compatible and may lose their effectiveness. The nurse should instruct the client to use separate nebulizers for each medication, and to wait at least 10 minutes between each nebulization to allow the medication to reach the lungs and avoid irritation of the airways. The nurse should also teach the client how to use the nebulizer properly, and how to clean and store it after each use.