A nurse is providing dietary teaching to a client who has chronic kidney disease (CKD). The nurse should instruct the client to limit which of the following nutrients? (Select all that apply.)

B-type natriuretic peptide (BNP) is a diagnostic blood test that can be most useful to the nurse in determining whether a client admitted with acute shortness of breath has heart failure.

BNP is a hormone produced by the heart in response to increased pressure and volume in the heart, especially in cases of heart failure. When the heart is under stress, such as in heart failure, it releases BNP into the bloodstream. Elevated levels of BNP are strongly indicative of heart failure, and the testis particularly helpful in differentiating heart failure from other conditions that may present withsimilar symptoms, such as pulmonary disorders.

When a patient presents with acute shortness of breath, the BNP test can provide valuable information to help guide the diagnosis and treatment. If the BNP level is elevated, it suggests that heart failure is likely the cause of the symptoms, and appropriate interventions can be initiated promptly.

While other diagnostic tests like serum troponin (A) are important for assessing heart damage in conditions like myocardial infarction (heart attack), they may not be as specific for heart failure.

Arterial blood gases (B) are helpful in evaluating gas exchange and acid-base balance, especially in patients with respiratory distress, but they are not specific for diagnosing heart failure.

A 12-lead electrocardiogram (ECG) (C) can provide valuable information about the heart's electrical activity and any signs of acute myocardial infarction or other cardiac abnormalities, but it is not the primary test for diagnosing heart failure. An ECG can support the diagnosis if specific changes suggestive of heart failure are present, but the BNP test provides more direct evidence for heart failure diagnosis.

The most important finding to report to the healthcare provider in a client admitted to the intensive care unit (ICU) with a hypertensive emergency is option B, "The client cannot move the left arm and leg when asked to do so."

Hypertensive emergencies are critical situations where extremely high blood pressure levels can lead to damage or dysfunction in vital organs, such as the brain, heart, kidneys, and eyes. Neurological symptoms are particularly concerning in this context, as they may indicate acute brain injury or stroke resulting from uncontrolled high blood pressure.

Option A, "Tremors are noted in the fingers when the client extends the arms," could be concerning but is not as immediately critical as the neurological deficit described in option B. Tremors can have various causes and may not directly relate to the hypertensive emergency unless other signs or symptoms of neurologic impairment are also present.

Option C, "Urine output over 8 hours is 250 mL less than the fluid intake," is relevant to monitor the client's fluid status and kidney function, but it does not indicate an acute, life-threatening condition that requires immediate attention like the neurological deficit in option B.

Option D, "The client reports a headache with pain at level 7 of 10 (0 to 10 scale)," is concerning and may be a symptom of the hypertensive emergency, but it is not as urgent as the neurological findings. Headache can be a symptom of elevated blood pressure, but it is not sufficient on its own to determine the severity of the hypertensive crisis.

In a hypertensive emergency, the priority is to identify and manage potential complications, such as neurological deficits, acute organ damage, or signs of target organ dysfunction. Prompt reporting of any neurological changes is crucial, as it may prompt immediate interventions to prevent further neurological deterioration. The healthcare provider needs to assess the client's neurological status promptly and determine appropriate management to prevent further complications.