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Questions and Answers

Which ion is present in the highest concentration in the intracellular fluid (ICF)?

  • Cl−
  • Ca2+
  • Na+
  • K+ (correct)
  • What process describes the movement of particles from an area of higher concentration to one of lower concentration?

  • Active transport
  • Diffusion (correct)
  • Concentration gradient
  • Osmosis
  • In which type of solution do cells neither shrink nor swell?

  • Isotonic (correct)
  • Hypertonic
  • Hypotonic
  • Transitional
  • What is the action called when water moves across a semipermeable membrane?

    <p>Osmosis</p> Signup and view all the answers

    In a hypertonic solution, the effect on cells is to cause them to:

    <p>Shrink</p> Signup and view all the answers

    What term describes the difference in concentration of a substance across a distance?

    <p>Concentration gradient</p> Signup and view all the answers

    What is the primary issue in diabetes insipidus?

    <p>Inability to concentrate urine</p> Signup and view all the answers

    If a solution contains impermeable solutes, how does it affect cell size?

    <p>Exerts osmotic pressure</p> Signup and view all the answers

    What characterizes a hypotonic solution regarding its effect on cells?

    <p>Cells swell</p> Signup and view all the answers

    What condition is characterized by a failure of the negative feedback system that regulates ADH?

    <p>Syndrome of inappropriate antidiuretic hormone secretion (SIADH)</p> Signup and view all the answers

    Which of the following describes nephrogenic diabetes insipidus?

    <p>Kidneys do not respond to ADH</p> Signup and view all the answers

    Which observation is indicative of decreased fluid volume?

    <p>Increased heart rate</p> Signup and view all the answers

    Which of the following could lead to conditions similar to diabetes insipidus?

    <p>Genetic defect in ADH receptors</p> Signup and view all the answers

    What condition is characterized by increased thirst due to true physiological needs?

    <p>Polydipsia</p> Signup and view all the answers

    Which of the following can lead to false thirst despite normal body water levels?

    <p>Increased angiotensin due to congestive heart failure</p> Signup and view all the answers

    Which neurological condition is associated with decreased perception of thirst?

    <p>Stroke</p> Signup and view all the answers

    What is a possible cause of compulsive water drinking (psychogenic polydipsia)?

    <p>Schizophrenia and antipsychotic medications</p> Signup and view all the answers

    Which hormone is primarily responsible for regulating water balance in the body?

    <p>Antidiuretic hormone (ADH)</p> Signup and view all the answers

    What pH value indicates a state of metabolic acidosis?

    <p>pH &lt; 7.35</p> Signup and view all the answers

    What is a common contributing etiology for respiratory acidosis?

    <p>Obesity</p> Signup and view all the answers

    If the bicarbonate level is measured at 25, what condition could this suggest?

    <p>Normal metabolic status</p> Signup and view all the answers

    What is the effect of mechanical ventilation on pCO2 levels?

    <p>Decrease pCO2 levels</p> Signup and view all the answers

    Which of the following can lead to respiratory alkalosis?

    <p>Anxiety</p> Signup and view all the answers

    What pCO2 level indicates respiratory alkalosis?

    <p>pCO2 &lt; 35</p> Signup and view all the answers

    How is metabolic alkalosis primarily identified through bicarbonate levels?

    <p>HCO3 &gt; 28</p> Signup and view all the answers

    What is the primary etiology of metabolic acidosis?

    <p>Excess acid production</p> Signup and view all the answers

    What is the primary role of body fluids in the body?

    <p>To facilitate waste removal and support metabolism</p> Signup and view all the answers

    Which compartment contains the majority of the body’s water?

    <p>Intracellular Compartment</p> Signup and view all the answers

    What is the main ion found in high concentration within the extracellular fluid?

    <p>Sodium</p> Signup and view all the answers

    What characterizes the composition of intracellular fluid (ICF)?

    <p>High concentration of potassium and moderate magnesium</p> Signup and view all the answers

    Which of the following is NOT found in large amounts in the extracellular fluid?

    <p>Potassium</p> Signup and view all the answers

    Which statement best describes the electrolytes present in the intracellular fluid?

    <p>Predominantly potassium and magnesium</p> Signup and view all the answers

    What is the function of bicarbonate in the extracellular fluid?

    <p>Regulation of pH</p> Signup and view all the answers

    How is the total body fluid divided in healthy adults?

    <p>70% intracellular and 30% extracellular</p> Signup and view all the answers

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