The nurse is reviewing the chart of a client with an indication of myocardial infarction or unstable angina. Which laboratory test result(s) should the nurse recognize as an indication of myocardial injury? (Select all that apply)

Choice A reason: Cucumbers are not a good source of iron for the client with iron-deficiency anemia. Iron-deficiency anemia is a condition where the body does not have enough iron to produce hemoglobin, the protein that carries oxygen in the red blood cells. Cucumbers are mostly water and have very little iron content. The client should eat foods that are rich in iron, such as meat, poultry, fish, eggs, beans, and leafy green vegetables.

Choice B reason: Bran is not a good source of iron for the client with iron-deficiency anemia. Bran is the outer layer of cereal grains that contains fiber and some minerals, but not much iron. Bran can also interfere with the absorption of iron from other foods by binding to it and preventing it from entering the bloodstream. The client should avoid eating bran or other foods that contain phytates, oxalates, or tannins, which can reduce the bioavailability of iron.

Choice C reason: Celery is not a good source of iron for the client with iron-deficiency anemia. Celery is a low-calorie vegetable that has some vitamins and minerals, but very little iron. Celery also has a high water content and can fill up the stomach without providing much nutrition. The client should eat foods that are high in iron, such as meat, poultry, fish, eggs, beans, and leafy green vegetables.

Choice D reason: This is the correct answer. Spinach is a good source of iron for the client with iron-deficiency anemia. Spinach is a leafy green vegetable that has a high iron content and can help increase the hemoglobin level and the oxygen-carrying capacity of the blood. Spinach also has other nutrients, such as vitamin C, folate, and antioxidants, that can benefit the health of the client. The client should eat spinach and other foods that are high in iron, such as meat, poultry, fish, eggs, beans, and leafy green vegetables.

Choice A reason: Tinnitus is not a common or serious side effect of digoxin, a drug that strengthens the contraction of the heart and regulates the heart rhythm. ¹ Tinnitus is a ringing or buzzing sound in the ears that can be caused by many factors, such as ear infections, loud noises, or medications. ² However, digoxin is not known to cause tinnitus, and it is not a reason to call the healthcare provider.

Choice B reason: Constipation is not a common or serious side effect of digoxin. Digoxin does not affect the bowel function, and it is not a reason to call the healthcare provider. Constipation can be caused by many factors, such as dehydration, lack of fiber, or medications. ³ The client should drink plenty of fluids, eat high-fiber foods, and exercise regularly to prevent or relieve constipation.

Choice C reason: Visual disturbances are a common and serious side effect of digoxin, and they are a reason to call the healthcare provider. Digoxin can cause changes in vision, such as blurred vision, yellow or green halos around objects, or seeing spots or flashes. ¹ These are signs of digoxin toxicity, which is a potentially life-threatening condition that occurs when the level of digoxin in the blood is too high. The client should report any visual disturbances to the healthcare provider as soon as possible.

Choice D reason: Vertigo is not a common or serious side effect of digoxin. Vertigo is a sensation of spinning or losing balance that can be caused by many factors, such as inner ear problems, head injuries, or medications. However, digoxin is not known to cause vertigo, and it is not a reason to call the healthcare provider.