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This statement is correct. Fluids and electrolytes help transport nutrients and oxygen to the cells by maintaining blood volume and pressure. They also help maintain the acid-base balance of the blood and other body fluids.

This statement is correct. Fluids and electrolytes help regulate body temperature by allowing heat to be distributed evenly throughout the body and by facilitating sweating, which cools the body. They also help lubricate the joints by providing synovial fluid, which reduces friction and inflammation.

This statement is correct. Fluids and electrolytes help digest food by providing saliva, gastric juice, bile, pancreatic juice, and intestinal secretions, which break down food and absorb nutrients. They also help excrete wastes from the body by forming urine, feces, sweat, and breath, which eliminate excess fluids, electrolytes, toxins, and carbon dioxide.

Feeling thirsty all the time is a sign of dehydration, not fluid loss. Dehydration occurs when the body does not have enough water and other fluids to carry out its normal functions. Dehydration can be caused by excessive sweating, vomiting, diarrhea, fever, or decreased water intake.

Gaining 2 pounds since yesterday is a sign of fluid retention, not fluid loss. Fluid retention occurs when the body holds on to extra water and salt in the tissues or blood vessels. Fluid retention can be caused by heart failure, kidney disease, liver disease, hormonal changes, or certain medications.

Having trouble breathing when lying down is a sign of orthopnea, not fluid loss. Orthopnea is a condition where a person feels short of breath when lying flat. Orthopnea can be caused by heart failure, lung disease, obesity, or sleep apnea.

Decreased sodium is not a typical feature of metabolic acidosis. Sodium levels may be low, normal or high depending on the cause and severity of the acidosis, as well as the fluid status of the patient. Sodium is not directly involved in the acid-base balance of the body.

Decreased calcium is not a typical feature of metabolic acidosis. Calcium levels may be low, normal or high depending on the cause and severity of the acidosis, as well as the presence of other disorders affecting calcium metabolism. Calcium is not directly involved in the acid-base balance of the body.

Increased chloride is a feature of normal anion gap metabolic acidosis, also known as hyperchloremic acidosis. This is because chloride replaces bicarbonate as the major anion in the blood when bicarbonate is lost or consumed by acids. However, increased chloride is not a feature of high anion gap metabolic acidosis, which is caused by accumulation of organic acids such as ketones or lactate.

Nausea and vomiting are not specific symptoms of diuretic use or fluid and electrolyte imbalance. They can be caused by many other factors, such as infection, food poisoning, medication side effects, or psychological stress. Nausea and vomiting can also lead to dehydration and electrolyte imbalance if not treated promptly. Therefore, the client should drink plenty of fluids and seek medical attention if nausea and vomiting persist or are severe, but they are not directly related to diuretic use or heart failure.

Headache and blurred vision are not common symptoms of diuretic use or fluid and electrolyte imbalance. They can be caused by many other factors, such as high blood pressure, migraine, eye strain, or neurological disorders. Headache and blurred vision can also be signs of a serious condition, such as stroke or brain tumor, that requires immediate medical attention. Therefore, the client should report headache and blurred vision to the provider as soon as possible, but they are not directly related to diuretic use or heart failure.

Constipation and abdominal pain are not common symptoms of diuretic use or fluid and electrolyte imbalance. They can be caused by many other factors, such as dietary changes, lack of fiber, medication side effects, or bowel obstruction. Constipation and abdominal pain can also be signs of a serious condition, such as appendicitis or diverticulitis, that requires immediate medical attention. Therefore, the client should report constipation and abdominal pain to the provider as soon as possible, but they are not directly related to diuretic use or heart failure.

Administering IV fluids as prescribed is not an appropriate intervention for a client who has fluid overload due to renal failure. IV fluids will increase the fluid volume and worsen the condition. The nurse should monitor the client's fluid intake and output, and report any signs of fluid overload to the provider.

Elevating the head of the bed is an appropriate intervention for a client who has fluid overload due to renal failure. Elevating the head of the bed helps to reduce the pressure on the lungs and improve the client's breathing. The nurse should also monitor the client's respiratory status, and administer oxygen therapy as prescribed.

Encouraging ambulation is not an appropriate intervention for a client who has fluid overload due to renal failure. Ambulation may increase the workload on the heart and lungs, and exacerbate the symptoms of fluid overload. The nurse should assist the client with activities of daily living, and provide rest periods between activities.