A nurse is reviewing a client's laboratory report of arterial blood gas (ABG) findings: pH 7.28, HCO3 18, and PaCO2 36. Which of the following conditions should the nurse anticipate when interpreting these findings?

Choice A reason:Placing the client in a sitting position helps to lower blood pressure by promoting venous return and is the first action to take in cases of autonomic dysreflexia²³.

Choice B reason:While examining for skin breakdown is important, it is not the first action to take when autonomic dysreflexia is suspected.

Choice C reason:Checking the bladder for distention is a critical step, but it should be done after positioning the client to address immediate blood pressure concerns.

Choice D reason:Checking for fecal impaction is also important but follows the initial step of positioning the client to manage blood pressure.

Choice A reason: Myocardial infarction (MI) is not limited to occurrences with exertion. While stable angina typically occurs during physical activity or emotional stress, MI can happen at any time, even at rest. The underlying cause of an MI is the complete blockage of blood supply to a part of the heart muscle, usually due to a blood clot in a coronary artery. This blockage can lead to the death of heart muscle tissue, a condition that requires immediate medical attention.

Choice B reason: Stable angina does not typically last for more than 30 minutes. It is characterized by chest pain or discomfort that occurs predictably with exertion or emotional stress and is relieved within minutes by rest or nitroglycerin. In contrast, the pain from an MI is more prolonged and severe, and it is not relieved by rest or nitroglycerin. If chest discomfort lasts longer than 15 minutes and is not alleviated by rest or nitroglycerin, it is a warning sign that the individual may be experiencing an MI.

Choice C reason: This is the distinguishing feature between stable angina and an MI. Stable angina is usually relieved within 3-5 minutes by rest or nitroglycerin, which helps to dilate the coronary arteries and improve blood flow to the heart muscle. Nitroglycerin is ineffective in relieving the symptoms of an MI because the problem is not just reduced blood flow but a complete blockage that nitroglycerin cannot overcome.

Choice D reason: The pain associated with an MI typically lasts for more than 15 minutes and can be quite severe. Unlike stable angina, the pain of an MI is not relieved by rest or nitroglycerin. The duration and severity of the pain, along with other symptoms such as shortness of breath, sweating, nausea, or lightheadedness, help differentiate an MI from stable angina.