Name: managing fluid, potassium in acute kidney injury
Uploaded: 2025-06-19T09:32:01.000Z
Duration: 1 min 20 s
Channel: JoVE

Management of Acute Kidney Injury focuses on identifying the cause and monitoring fluid balance to prevent dehydration or fluid overload.Diuretics like furosemide help reduce symptoms of fluid overload but do not improve kidney function.Medication adjustments, especially for diuretics, antibiotics, and digoxin, are crucial to prevent toxicity as kidney function declines.For hyperkalemia, calcium gluconate stabilizes cardiac membranes, while insulin promotes cellular potassium uptake. Patiromer is used for ongoing management.Dialysis is generally indicated for patients with End-stage kidney disease or severe complications such as fluid overload, hyperkalemia, or metabolic acidosis.Options include hemodialysis, peritoneal dialysis, and continuous renal replacement therapy.Lastly, nutritional therapy aims for 30 to 35 kilocalories per kilogram per day, with 0.6 to 1.0 grams of protein per kilogram for non-dialysis patients and 1.2 to 1.3 grams per kilogram for general dialysis patients.

acute kidney injury v: interprofessional care

Acute Kidney Injury V: Interprofessional Care

Acute Kidney Injury (AKI) requires a collaborative healthcare approach to restore renal function and prevent complications. Essential management strategies involve monitoring fluid and electrolyte balance, adjusting medications, initiating dialysis when necessary, and providing nutritional support.<h3>Fluid and Electrolyte Management</h3><ul><li>Fluid Monitoring: Regularly monitoring body weight, central venous pressure, and urine output helps detect fluid imbalances early. Patient intake and output are carefully documented to prevent fluid overload, which may cause pulmonary edema and dyspnea. The nurse monitors for signs of fluid excess, including distended neck veins, crackles on lung auscultation, and generalized edema.</li><li>Diuretics: Loop diuretics, like furosemide, may be used to alleviate symptoms of fluid overload. However, diuretics do not directly improve kidney function and are typically prescribed for symptom relief. In cases of prerenal AKI, IV fluids or blood transfusions may be given to restore renal blood flow and reduce fluid retention.</li><li>Electrolyte Adjustments: Hyperkalemia, a serious electrolyte imbalance in AKI, is initially treated with calcium gluconate to stabilize the cardiac membrane. Insulin and glucose are administered to temporarily shift potassium into cells, while patiromer or sodium polystyrene sulfonate (Kayexalate) can be used for ongoing potassium removal via the gastrointestinal tract. Severe hyperkalemia may require dialysis for rapid potassium reduction&#8203;.</li></ul><h3>Medication Management</h3>Medications, including diuretics, antibiotics, and drugs like digoxin, must be adjusted to prevent toxicity, as kidney impairment slows their clearance from the body. Dosage adjustments are essential to prevent accumulation and adverse effects. Monitoring for potential toxic effects of these medications is crucial in AKI management&#8203;.<h3>Dialysis Indications and Options</h3><ul><li>Indications for Dialysis: Dialysis is indicated in cases of severe AKI complications, such as fluid overload, hyperkalemia, metabolic acidosis, or significantly elevated blood urea nitrogen (BUN) levels that cannot be managed conservatively. Additional clinical signs, such as altered mental status, may also necessitate dialysis&#8203;.</li><li>Dialysis Options:<ul><li>Hemodialysis (HD) is the preferred method for rapidly removing waste products and excess fluids. It filters blood through an artificial kidney, providing adequate clearance, but rapid fluid shifts may cause hypotension&#8203;.</li><li>Peritoneal Dialysis (PD) is a less common approach to AKI. It uses the peritoneal membrane for fluid exchange, providing a gentler filtration option in specific cases&#8203;.</li><li>Continuous Renal Replacement Therapy (CRRT) is particularly suited for hemodynamically unstable patients. It offers continuous, slower filtration that prevents rapid fluid and electrolyte shifts, minimizing risks in critically ill patients&#8203;.</li></ul></li></ul><h3>Nutritional Therapy</h3><ul><li>Caloric and Protein Requirements: Nutritional support is essential to prevent catabolism, with 30 to 35 kilocalories per kilogram of body weight provided daily. To reduce nitrogenous waste, protein intake is restricted to 0.8&#8211;1.0 grams per kilogram per day in non-dialysis patients. In patients on dialysis or CRRT, protein intake is increased to 1.2&#8211;2.5 grams per kilogram daily to compensate for protein losses during treatment&#8203;.</li><li>Electrolyte and Fluid Adjustments: Sodium intake is restricted to prevent edema and hypertension. Potassium and phosphorus intake are also carefully adjusted according to serum levels to avoid further complications in AKI management.</li></ul>

Acute Kidney Injury (AKI) requires a collaborative healthcare approach to restore renal function and prevent complications. Essential management ...

acute-kidney-injury-v-interprofessional-care

Education

JoVE Core

Medical-Surgical Nursing

Unit 1

Management of Patients with Kidney Disorders

management-of-patients-with-kidney-disorders

KEY TERMS AND CONCEPTS

managing fluid, potassium in acute kidney injury

Acute kidney injury requires close care to manage fluid balance, potassium levels, medicines, dialysis, and nutrition. The goal is to support kidney recovery and prevent complications. Nurses and other clinicians often work together to watch for early changes and respond quickly.

Fluid monitoring is a major part of care. Body weight, central venous pressure, and urine output are checked regularly. Intake and output are recorded to help prevent fluid overload, which can lead to pulmonary edema and dyspnea. Signs of too much fluid include distended neck veins, crackles on lung auscultation, and generalized edema. Loop diuretics, such as furosemide, may be used to ease fluid overload symptoms. These drugs do not directly improve kidney function. In prerenal acute kidney injury, IV fluids or blood transfusions may be given to restore renal blood flow and reduce fluid retention.

Electrolyte care often focuses on hyperkalemia, which is a dangerous rise in potassium. Calcium gluconate is given first to stabilize the cardiac membrane. Insulin and glucose then shift potassium into cells for a short time. Patiromer or sodium polystyrene sulfonate, also called Kayexalate, can help remove potassium through the gastrointestinal tract. Severe hyperkalemia may require dialysis for faster potassium removal.

Medication dosing also needs careful review. Drugs such as diuretics, antibiotics, and digoxin may build up because kidney impairment slows their clearance. Doses are adjusted to lower the risk of toxicity and side effects. The care team also watches closely for signs of adverse effects from these medicines.

Dialysis is used when severe complications do not respond to conservative care. Common reasons include fluid overload, hyperkalemia, metabolic acidosis, very high blood urea nitrogen levels, and changes in mental status. Hemodialysis is often preferred because it removes waste products and excess fluid quickly, but rapid fluid shifts can cause hypotension. Peritoneal dialysis is less common in acute kidney injury and uses the peritoneal membrane for gentler exchange. Continuous renal replacement therapy is useful for hemodynamically unstable patients because it filters blood slowly and continuously.

Nutrition support is also important during acute kidney injury. Patients may need 30 to 35 kilocalories per kilogram of body weight each day to prevent catabolism. Protein is usually limited to 0.8 to 1.0 grams per kilogram per day in patients not on dialysis to reduce nitrogenous waste. Protein needs rise to 1.2 to 2.5 grams per kilogram daily for patients on dialysis or CRRT because these treatments can remove protein. Sodium is restricted to help prevent edema and hypertension, and potassium and phosphorus intake are adjusted based on serum levels.

Managing Fluid, Potassium in Acute Kidney Injury

managing-fluid-potassium-in-acute-kidney-injury

acute kidney injury i: introduction

Acute Kidney Injury: Signs and Stages

Acute Kidney Injury (AKI) is a sudden drop in kidney function that happens over hours to days. The kidneys cannot remove waste products from the blood as well as they should. This can cause metabolic acidosis, fluid overload, and electrolyte problems such as hyperkalemia. High potassium can lead to life-threatening heart rhythm changes. AKI is seen in both hospitals and outpatient settings. It can be caused by dehydration, sepsis, or nephrotoxic drugs, which are drugs that can damage the...

acute kidney injury ii: pathophysiology

Acute Kidney Injury: Causes and Kidney Damage

Acute kidney injury (AKI) can be grouped by where the problem starts in the kidney system. The three main categories are prerenal, intrarenal, and postrenal causes. This breakdown helps explain how kidney function is disrupted and supports clinical decision-making. Prerenal acute kidney injury is the most common type. It happens when blood flow to the kidneys drops, so filtration falls even though the kidney tissue itself is not directly damaged. Common causes include hypovolemia from...

acute kidney injury iii: clinical manifestations

acute-kidney-injury-iii-clinical-manifestations

Acute Kidney Injury: Stage Changes and Symptoms

Acute kidney injury (AKI) changes through three clinical stages: oliguric, diuretic, and recovery. Each stage has its own signs and care needs. The main pattern is a shift from low urine output to high urine output and then gradual healing. The oliguric phase is the first stage and usually lasts 10 to 14 days. Urine output drops to less than 400 mL per day, which shows that the kidneys are not working well. Fluid builds up in the body and can cause edema, high blood pressure, and distended...

acute kidney injury iv: diagnostic studies and prevention

acute-kidney-injury-iv-diagnostic-studies-and-prevention

Acute Kidney Injury IV: Testing and Prevention

Acute kidney injury (AKI) requires early testing and prevention to reduce kidney damage. AKI is linked to high mortality, with reported rates ranging from 10% to 80%. Careful monitoring helps identify at-risk patients before the injury becomes severe. Diagnosis starts with a detailed medical history. Clinicians look for prerenal causes, intrarenal causes, and postrenal causes. Prerenal AKI may follow dehydration, low blood pressure, or blood loss. Intrarenal AKI can result from nephrotoxic...

Acute kidney injury requires close care to manage fluid balance, potassium levels, medicines, dialysis, and nutrition. The goal is to support kidney recovery and prevent complications. Nurses and other clinicians often work together to watch for early changes and respond quickly. Fluid monitoring is a major part of care. Body weight, central venous pressure, and urine output are checked regularly. Intake and output are recorded to help prevent fluid overload, which can lead to pulmonary edema...

acute kidney injury vi: nursing management

acute-kidney-injury-vi-nursing-management

Acute Kidney Injury VI: Fluid Balance Care

Acute kidney injury can make it hard to keep fluid, electrolyte, and acid-base balance in range. Nursing care focuses on careful assessment and targeted actions to improve patient outcomes. A complete patient history is the first step. Nurses should ask about recent infections, nephrotoxic medications, and chronic conditions such as hypertension and diabetes that may contribute to acute kidney injury. The physical exam should look for fluid overload. Key signs include oliguria, which means...

chronic kidney disease i: introduction

Chronic Kidney Disease: Causes and Progression

Chronic kidney disease (CKD) develops when the kidneys slowly lose their ability to work. As the disease advances, it can lead to end-stage renal disease. At that point, the kidneys can no longer filter wastes or help maintain essential body functions, so survival depends on renal replacement therapy, such as dialysis or a kidney transplant. Early CKD can be hard to detect. Healthy nephrons, the kidney’s filtering units, often make up for damaged ones at first. This compensation can hide the...

chronic kidney disease ii: clinical manifestations

chronic-kidney-disease-ii-clinical-manifestations

Chronic Kidney Disease: Body System Effects

Chronic kidney disease affects many body systems as uremic toxins build up and disrupt normal cell function. As the kidneys lose filtering ability, symptoms can appear in the brain, skin, heart, lungs, digestive tract, blood, bones, and reproductive system. These changes often develop gradually, but they can become serious as the disease advances. Neurologic symptoms often appear early. People may feel tired, have headaches, feel confused, or have trouble concentrating. In severe cases,...

chronic kidney disease iii: interprofessional care

chronic-kidney-disease-iii-interprofessional-care

Chronic Kidney Disease: Testing, Diet, and Dialysis

Chronic kidney disease (CKD) is managed through testing, medicine, diet, and dialysis. It can progress through stages and may lead to end-stage kidney disease (ESKD) if it is not treated. Care often depends on teamwork among health professionals, and patient education helps people manage the condition and protect quality of life. Doctors often track CKD by checking glomerular filtration rate, or GFR, which shows how well the kidneys filter blood. They also monitor serum creatinine and blood...

chronic kidney disease iv: nursing management

chronic-kidney-disease-iv-nursing-management

CKD Nursing Care: Assessment to Follow-Up

Chronic kidney disease nursing care focuses on assessment, monitoring, and follow-up to help prevent complications and keep patients stable. Nurses use a structured approach to slow CKD progression and support quality of life. Care starts with a full patient assessment. Nurses review medical history and look for risk factors such as diabetes, hypertension, and nephrotoxic drug use, which are medicines that can harm the kidneys. They also check for fluid retention, including peripheral edema,...

key terms and concepts

Learn how acute kidney injury is managed with fluid checks, potassium control, medication dose changes, dialysis options, and nutrition support.

Managing Fluid, Potassium in Acute Kidney Injury | JoVE K12

JoVE Core Medical-Surgical Nursing offers comprehensive animated lessons that cover major systems of the human body, integrating anatomy and physiology with system-specific assessments. This collection encompasses disease conditions based on the body systems, detailing their pathophysiology, medical and surgical management, and nursing interventions. These lessons provide a clear and practical understanding of medical-surgical care, equipping students with essential skills for managing patient care in various clinical settings.

Managing Fluid, Potassium in Acute Kidney Injury

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