Podcast
Questions and Answers
Which of the following is a common cause of prerenal acute kidney injury (AKI)?
Which of the following is a common cause of prerenal acute kidney injury (AKI)?
- Low blood pressure (correct)
- Kidney stones
- Nephrotoxins
- Glomerulonephritis
Which of the following conditions is the most common cause of chronic kidney disease (CKD)?
Which of the following conditions is the most common cause of chronic kidney disease (CKD)?
- Glomerulonephritis
- Diabetes mellitus (correct)
- Polycystic kidney disease
- Chronic pyelonephritis
End-stage renal disease (ESRD) is characterized by a glomerular filtration rate (GFR) that is what percentage of normal?
End-stage renal disease (ESRD) is characterized by a glomerular filtration rate (GFR) that is what percentage of normal?
- Less than 50%
- Less than 1%
- Less than 10% (correct)
- Less than 25%
Damage to the glomeruli or tubules, leading to impaired reabsorption/secretion and a buildup of nitrogenous wastes, is characteristic of which type of acute kidney injury (AKI)?
Damage to the glomeruli or tubules, leading to impaired reabsorption/secretion and a buildup of nitrogenous wastes, is characteristic of which type of acute kidney injury (AKI)?
Which of the following directly contributes to glomerular hypertension and fibrosis in chronic kidney disease (CKD)?
Which of the following directly contributes to glomerular hypertension and fibrosis in chronic kidney disease (CKD)?
What is the primary mechanism by which proteinuria worsens tubulointerstitial damage in chronic kidney disease (CKD)?
What is the primary mechanism by which proteinuria worsens tubulointerstitial damage in chronic kidney disease (CKD)?
Which clinical manifestation is commonly associated with acute kidney injury (AKI)?
Which clinical manifestation is commonly associated with acute kidney injury (AKI)?
What electrolyte imbalance is typically observed in chronic kidney disease (CKD)?
What electrolyte imbalance is typically observed in chronic kidney disease (CKD)?
Which clinical feature is commonly associated with end-stage renal disease (ESRD)?
Which clinical feature is commonly associated with end-stage renal disease (ESRD)?
In postrenal AKI, increased pressure in Bowman's capsule directly leads to what physiological consequence?
In postrenal AKI, increased pressure in Bowman's capsule directly leads to what physiological consequence?
What is the primary adaptive mechanism in the remaining nephrons during chronic kidney disease (CKD), as described by the 'intact nephron hypothesis'?
What is the primary adaptive mechanism in the remaining nephrons during chronic kidney disease (CKD), as described by the 'intact nephron hypothesis'?
A patient with chronic kidney disease (CKD) is likely to experience which specific bone disorder as a result of the disease?
A patient with chronic kidney disease (CKD) is likely to experience which specific bone disorder as a result of the disease?
Which of the following is the most direct consequence of reduced GFR, urine concentration, and waste elimination in ESRD?
Which of the following is the most direct consequence of reduced GFR, urine concentration, and waste elimination in ESRD?
Which of the following best describes the role of chronic inflammation and oxidative stress in the progression of chronic kidney disease (CKD)?
Which of the following best describes the role of chronic inflammation and oxidative stress in the progression of chronic kidney disease (CKD)?
Given that recurrent episodes of AKI can accelerate the progression to ESRD, what underlying pathophysiological change is MOST likely driving this progression?
Given that recurrent episodes of AKI can accelerate the progression to ESRD, what underlying pathophysiological change is MOST likely driving this progression?
A researcher is studying the effects of a novel drug designed to modulate the renin-angiotensin-aldosterone system (RAAS) in patients with CKD. Which specific outcome would BEST indicate the drug's effectiveness in slowing CKD progression?
A researcher is studying the effects of a novel drug designed to modulate the renin-angiotensin-aldosterone system (RAAS) in patients with CKD. Which specific outcome would BEST indicate the drug's effectiveness in slowing CKD progression?
A patient with long-standing diabetes mellitus develops proteinuria, hypertension, and declining renal function. If a kidney biopsy reveals glomerulosclerosis and tubulointerstitial fibrosis, which of the following pathogenic mechanisms is MOST likely contributing to these findings?
A patient with long-standing diabetes mellitus develops proteinuria, hypertension, and declining renal function. If a kidney biopsy reveals glomerulosclerosis and tubulointerstitial fibrosis, which of the following pathogenic mechanisms is MOST likely contributing to these findings?
Progressive nephron loss in chronic kidney disease (CKD) leads to compensatory mechanisms in the remaining nephrons. Which of the following is a potential long-term consequence of this compensation?
Progressive nephron loss in chronic kidney disease (CKD) leads to compensatory mechanisms in the remaining nephrons. Which of the following is a potential long-term consequence of this compensation?
A patient presents with symptoms of uremia, including nausea, vomiting, and altered mental status. What is the underlying cause of these symptoms?
A patient presents with symptoms of uremia, including nausea, vomiting, and altered mental status. What is the underlying cause of these symptoms?
A patient's acute kidney injury (AKI) is determined to be due to obstruction. Which classification of AKI is this?
A patient's acute kidney injury (AKI) is determined to be due to obstruction. Which classification of AKI is this?
Flashcards
Prerenal AKI
Prerenal AKI
Reduced blood flow to the kidneys, often due to low blood pressure, leading to decreased kidney function.
Intrarenal AKI
Intrarenal AKI
Direct damage to kidney tissue, such as the glomeruli or tubules, often caused by toxins, infections, or autoimmune diseases.
Postrenal AKI
Postrenal AKI
Obstruction of urinary outflow, leading to backflow of urine into the kidneys and subsequent damage.
Chronic Kidney Disease (CKD)
Chronic Kidney Disease (CKD)
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Glomerulonephritis
Glomerulonephritis
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End-Stage Renal Disease (ESRD)
End-Stage Renal Disease (ESRD)
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Intact Nephron Hypothesis
Intact Nephron Hypothesis
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Proteinuria
Proteinuria
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Glomerular Hypertension
Glomerular Hypertension
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Uremic Syndrome
Uremic Syndrome
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Symptoms of Uremia
Symptoms of Uremia
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Dialysis
Dialysis
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Transplantation
Transplantation
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Oliguria
Oliguria
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Anuria
Anuria
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Elevated Serum Creatinine and BUN
Elevated Serum Creatinine and BUN
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Electrolyte Imbalances
Electrolyte Imbalances
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Electrolyte Imbalances (in CKD)
Electrolyte Imbalances (in CKD)
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Anemia (in CKD)
Anemia (in CKD)
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CKD-MBD
CKD-MBD
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Study Notes
- Acute Kidney Injury (AKI), Chronic Kidney Disease (CKD), and End-Stage Renal Disease (ESRD) all have different causes.
Acute Kidney Injury (AKI)
- Prerenal AKI is caused by renal hypoperfusion, such as low blood pressure or volume depletion.
- Intrarenal AKI comes from direct damage to kidney tissue, such as acute tubular necrosis, glomerulonephritis, or nephrotoxins.
- Postrenal AKI results from obstruction of urinary outflow, such as from kidney stones, tumors, or an enlarged prostate.
Chronic Kidney Disease (CKD)
- Diabetes mellitus represents the most common cause.
- Other causes include hypertension, glomerulonephritis (autoimmune, post-infectious), polycystic kidney disease, chronic pyelonephritis, and prolonged obstruction (e.g., BPH, nephrolithiasis).
End-Stage Renal Disease (ESRD)
- Represents the final stage of progressive CKD.
- Glomerular Filtration Rate (GFR) is less than 10% of normal.
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