Renal System: Urinary Tract Infections (UTIs)

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Questions and Answers

How do most cases of acute pyelonephritis start off?

  • As prostatitis
  • As cystitis (correct)
  • As epididymitis
  • As urethritis

What is the main symptom of acute pyelonephritis?

  • Groin pain
  • Blood in urine
  • Weight loss
  • Painful urination (correct)

How is acute pyelonephritis typically treated?

  • Surgery
  • Fluid restriction
  • Antibiotics (correct)
  • Painkillers

What is a common sign of chronic pyelonephritis?

<p>Blood in urine (B)</p> Signup and view all the answers

What effect does tubular dysfunction have on plasma Na, K, H, and water levels?

<p>Decreases Na, increases K, decreases H, no effect on water (B)</p> Signup and view all the answers

What is the function of the convoluted part of the proximal tubules in the nephron?

<p>Absorbing glucose, amino acids, and vitamins (D)</p> Signup and view all the answers

Which structure is involved in actively resorbing sodium ions from the glomerular filtrate?

<p>Proximal convoluted tubules (PCT) (C)</p> Signup and view all the answers

Where are the thick descending limbs of the loop of Henle located in relation to the kidney?

<p>Renal Medulla (A)</p> Signup and view all the answers

What is a characteristic feature of the epithelial cells in the distal convoluted tubules?

<p>Low columnar epithelium (C)</p> Signup and view all the answers

Which part of the nephron plays a significant role in reducing the volume of the glomerular filtrate?

<p>Proximal convoluted tubules (PCT) (D)</p> Signup and view all the answers

What differentiates the thick descending limbs of the loop of Henle from the proximal tubule?

<p>Presence of apical brush borders (B)</p> Signup and view all the answers

What is the main function of the mesangium in the glomerulus?

<p>Filling the spaces between capillary loops (B)</p> Signup and view all the answers

Which layer in the renal corpuscle is characterized by large round fenestrations?

<p>Capillary endothelium (A)</p> Signup and view all the answers

What is the main structural feature of the podocyte layer in the glomerulus?

<p>Long cytoplasmic extensions called processes (D)</p> Signup and view all the answers

Which part of the renal tubule can be divided into proximal and distal portions?

<p>Distal convoluted tubule (A)</p> Signup and view all the answers

What is the primary function of the proximal tubules in the renal system?

<p>Reabsorbing water and electrolytes (D)</p> Signup and view all the answers

Where is the brush border located within the renal system?

<p>At the proximal convoluted tubule cells (C)</p> Signup and view all the answers

Which of the following structures are found in the renal cortex?

<p>Proximal convoluted tubules (PCT) and distal convoluted tubules (DCT) (D)</p> Signup and view all the answers

Which of the following statements about the distal convoluted tubules (DCT) is true?

<p>They have a larger lumen and paler cytoplasm compared to the PCT (D)</p> Signup and view all the answers

What is the primary function of the epithelial cells in the ascending limbs of the loop of Henle?

<p>Active transport of sodium and chloride out of the tubular lumen (D)</p> Signup and view all the answers

Which of the following structures is responsible for regulating blood flow and afferent arteriole constriction?

<p>Distal convoluted tubules (DCT) (D)</p> Signup and view all the answers

What is a distinguishing feature of the collecting ducts in the renal medulla?

<p>They have prominent lateral borders between adjacent cells (C)</p> Signup and view all the answers

Which of the following statements about the descending limbs of the loop of Henle is true?

<p>They are permeable to water but not to solutes (A)</p> Signup and view all the answers

What is primarily under the control of carotid and aortic bodies?

<p>Respiratory alkalosis (C)</p> Signup and view all the answers

Which condition results in an increase in the partial pressure of oxygen in arterial blood (PAO2) due to minute ventilation?

<p>Respiratory alkalosis (C)</p> Signup and view all the answers

In which condition is minute ventilation less affected by an increase in CO2 levels?

<p>Metabolic alkalosis (C)</p> Signup and view all the answers

Which condition is primarily controlled by medullary chemoreceptors responsible for recognizing changes in CO2?

<p>Respiratory acidosis (A)</p> Signup and view all the answers

Which buffer system reacts more readily to changes in hydrogen ion concentration than oxygen and bicarbonate?

<p>Hemoglobin buffer (A)</p> Signup and view all the answers

Which system provides quicker buffering effects compared to the renal system?

<p>Blood protein buffering system (C)</p> Signup and view all the answers

In renal handling, where is phosphoric acid and ammonia predominantly excreted?

<p>Distal tubule (A)</p> Signup and view all the answers

What is the consequence of kidney injury in relation to acidosis?

<p>Development of acidosis due to failure to excrete metabolic acids (B)</p> Signup and view all the answers

What is a potential cause of respiratory acidosis?

<p>Decreased respiratory drive (D)</p> Signup and view all the answers

Which condition results in hyperventilation to increase CO2 clearance?

<p>Respiratory alkalosis (B)</p> Signup and view all the answers

What is a characteristic of respiratory alkalosis?

<p>Hyperventilation to decrease CO2 levels (D)</p> Signup and view all the answers

Within the renal system, what process occurs predominantly in the distal tubule compared to the proximal tubule?

<p>Excretion of metabolic acids (D)</p> Signup and view all the answers

Which of the following is the most common cause of a normal anion gap metabolic acidosis (NAGMA)?

<p>Diarrhea or aldosterone antagonists (A)</p> Signup and view all the answers

What is the primary compensation mechanism for respiratory alkalosis?

<p>Increased renal hydrogen ion excretion (A)</p> Signup and view all the answers

Which of the following is a common cause of metabolic alkalosis?

<p>Vomiting or diuretic use (A)</p> Signup and view all the answers

What is the primary compensation mechanism for respiratory acidosis?

<p>Increased renal bicarbonate reabsorption (A)</p> Signup and view all the answers

Which of the following statements about metabolic acidosis compensation is true?

<p>Respiratory compensations retain CO2 to offset acidosis (A)</p> Signup and view all the answers

What is a distinguishing feature of metabolic alkalosis compared to acidosis?

<p>Metabolic alkalosis is associated with higher mortality (C)</p> Signup and view all the answers

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