The client diagnosed with vitamin B12 deficiency presents to the outpatient department for the follow-up evaluation. Which nursing assessment finding indicates that the treatment has been effective? The client:

Choice A reason: This is not an alarming statement. Feeling a little anxious when experiencing chest discomfort is a normal and understandable reaction. Chest discomfort can be a sign of angina, which is a condition where the heart muscle does not get enough oxygen due to reduced blood flow. Angina can cause pain, pressure, or tightness in the chest, and can be triggered by physical or emotional stress. The client should try to relax and take their medication as prescribed to relieve the discomfort.

Choice B reason: This is not an alarming statement. Knowing that they should carry their medication with them in case they develop chest pain is a sign of good self-care and awareness. The client should have a quick-relief medication, such as nitroglycerin, that can dilate the coronary arteries and improve the blood flow to the heart. The client should take the medication as soon as they feel chest pain and follow the instructions on how to use it.

Choice C reason: This is not an alarming statement. Learning to cook using the "good" cooking oils is a sign of positive lifestyle change and adaptation. The client should avoid or limit the intake of saturated and trans fats, which can raise the level of low-density lipoprotein (LDL) cholesterol in the blood. LDL cholesterol is also known as the "bad" cholesterol because it can deposit on the walls of the arteries and cause atherosclerosis, which is the narrowing and hardening of the arteries. The client should use unsaturated fats, such as olive oil, canola oil, or sunflower oil, which can lower the LDL cholesterol and increase the high-density lipoprotein (HDL) cholesterol. HDL cholesterol is also known as the "good" cholesterol because it can remove the excess cholesterol from the arteries and transport it to the liver.

Choice D reason: This is the alarming statement. Waiting about two hours after feeling chest discomfort to seek medical attention is a sign of denial and delay. Chest discomfort can be a symptom of a heart attack, which is a life-threatening emergency where the blood flow to the heart is blocked and the heart muscle begins to die. The client should seek immediate medical attention if they experience chest pain that lasts more than a few minutes, or if it is accompanied by other signs, such as shortness of breath, nausea, sweating, or arm or jaw pain. The sooner the client receives treatment, the better the chance of survival and recovery.

Choice A reason: Throwing away any tablets that fizzle under my tongue, it means they are ineffective is not a statement that indicates an understanding of the discharge teaching. This statement is incorrect and dangerous, as fizzling or tingling is a normal sensation that indicates that the tablet is working. The client should not discard or waste the medication, but keep it in a dark, dry, and cool place.

Choice B reason: Keeping my bottle of nitroglycerin at home in the medicine cabinet is not a statement that indicates an understanding of the discharge teaching. This statement is impractical and risky, as the client may need the medication when they are away from home. The client should always carry the medication with them and have it readily available in case of chest pain.

Choice C reason: Calling 911 if I get chest pain that doesn't go away after one tablet and I will take another tablet is a statement that indicates an understanding of the discharge teaching. This statement is correct and safe, as it follows the standard protocol for using nitroglycerin SL for angina. The client should take one tablet under the tongue at the onset of chest pain, wait five minutes, and repeat if the pain persists. If the pain is not relieved after three tablets, the client should seek emergency medical attention.

Choice D reason: Removing the tablets from the bottle and keeping them in a plastic bag in my handbag is not a statement that indicates an understanding of the discharge teaching. This statement is inappropriate and harmful, as it exposes the medication to light, moisture, and heat, which can reduce its potency and effectiveness. The client should keep the tablets in their original container and close it tightly after each use.