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Questions and Answers

What assessment finding would a nurse most likely note in a client suspected of experiencing fluid volume deficit?

  • Increased respirations and increased blood pressure
  • Weight loss and poor skin turgor
  • Lung congestion and increased heart rate
  • Decreased hematocrit and increased urine output (correct)
  • Who among the following clients would be at highest risk for developing fluid volume excess?

  • The client with kidney disease that developed as a complication of diabetes mellitus (correct)
  • The client taking diuretics who has tenting of the skin
  • The client who requires intermittent gastrointestinal suctioning
  • The client with an ileostomy from a recent abdominal surgery
  • Which client is at highest risk for developing a potassium level of 5.5 mEq/L (5.5 mmol/L)?

  • The client with colitis
  • The client with Cushing’s syndrome (correct)
  • The client who has been overusing laxatives
  • The client who has sustained a traumatic burn
  • Which laboratory finding would most support a diagnosis of fluid volume excess in a client?

    <p>High BUN and creatinine levels</p> Signup and view all the answers

    Which assessment finding would be inconsistent with a diagnosis of fluid volume deficit in a client?

    <p>Bounding pulses</p> Signup and view all the answers

    Which client should the nurse prioritize assessment for fluid volume excess?

    <p>The client with ascites from liver cirrhosis</p> Signup and view all the answers

    What additional sign would the nurse expect to note in a client with hyponatremia?

    <p>Muscle twitches</p> Signup and view all the answers

    Which condition most likely caused a serum phosphorus level of 1.8 mg/dL (0.58 mmol/L)?

    <p>Renal insufficiency</p> Signup and view all the answers

    Through which type of excretion does insensible fluid loss occur?

    <p>Integumentary output</p> Signup and view all the answers

    In a group of clients, who is most likely at risk for a fluid volume deficit?

    <p>A client with an ileostomy</p> Signup and view all the answers

    Which symptom would not typically be observed in a client with hyponatremia?

    <p>Flushed skin</p> Signup and view all the answers

    Which electrolyte imbalance is commonly associated with generalized muscle weakness?

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

    What is the normal serum calcium level?

    <p>9 to 10.5 mg/dL</p> Signup and view all the answers

    What electrocardiographic changes occur in a client with hypocalcemia?

    <p>Prolonged QT interval and prolonged ST segment</p> Signup and view all the answers

    What electrocardiographic changes are indicative of hypercalcemia?

    <p>Shortened ST segment and widened T wave</p> Signup and view all the answers

    In a client with Crohn’s disease, what calcium level indicates hypocalcemia?

    <p>9 mg/dL</p> Signup and view all the answers

    What type of waves occur with myocardial infarction?

    <p>Peaked T waves</p> Signup and view all the answers

    Which electrolyte imbalance is associated with ST depression and prominent U waves on an ECG?

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

    What electrocardiographic changes are expected when hyperkalemia exists?

    <p>Tall peaked T waves, flat P waves, widened QRS complexes, and prolonged PR interval</p> Signup and view all the answers

    What serum sodium level range is considered normal?

    <p>135 to 145 mEq/L</p> Signup and view all the answers

    Which condition is indicated by a serum sodium level of 130 mEq/L?

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

    Who is at risk for hypernatremia among the following?

    <p>Client with hyperaldosteronism</p> Signup and view all the answers

    Which of the following changes is NOT associated with hyperkalemia?

    <p>Narrow QRS complexes</p> Signup and view all the answers

    What cognitive skill is required to recognize the expected electrocardiographic changes in hyperkalemia?

    <p>Clinical Judgment/Cognitive Skill</p> Signup and view all the answers

    What are insensible losses?

    <p>Losses that occur through skin and lungs</p> Signup and view all the answers

    Why are urination, wound drainage, and gastrointestinal tract losses considered sensible losses?

    <p>Because they are comparable and alike</p> Signup and view all the answers

    Which of the following is an example of sensible fluid loss?

    <p>Fluid loss through urination</p> Signup and view all the answers

    Why can't fluid loss through the skin be measured accurately?

    <p>It can only be approximated</p> Signup and view all the answers

    What distinguishes insensible losses from sensible losses?

    <p>Awareness of the person experiencing the loss</p> Signup and view all the answers

    Why are insensible losses considered difficult to measure accurately?

    <p>Because they are non-voluntary and unconscious</p> Signup and view all the answers

    Which clinical manifestation would the nurse expect to note in a client with hypocalcemia and lactose intolerance?

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

    In a client with Crohn’s disease and a calcium level of 8 mg/dL (2 mmol/L), which electrocardiogram pattern should the nurse monitor for?

    <p>Peaked T wave</p> Signup and view all the answers

    For a client with chronic kidney disease and a potassium level of 5.7 mEq/L (5.7 mmol/L), what ECG change might the nurse observe?

    <p>Tall peaked T waves</p> Signup and view all the answers

    Which client is at risk for the development of a sodium level at 130 mEq/L (130 mmol/L)?

    <p>The client with hyperaldosteronism</p> Signup and view all the answers

    What would be a concerning sign in a client with chronic kidney disease and a potassium level of 5.7 mEq/L (5.7 mmol/L)?

    <p>Widened QRS complexes</p> Signup and view all the answers

    Which electrolyte imbalance is associated with prolonged ST segment and tall peaked T waves on an ECG?

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

    What additional sign would the nurse expect to note in a client with hyponatremia?

    <p>Muscle twitches</p> Signup and view all the answers

    Which client is most likely at risk for a fluid volume deficit?

    <p>A client with an ileostomy</p> Signup and view all the answers

    What condition most likely caused the serum phosphorus level of 1.8 mg/dL?

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

    What type of excretion does insensible fluid loss occur through?

    <p>Integumentary output</p> Signup and view all the answers

    What electrolyte imbalance is commonly associated with generalized muscle weakness?

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

    Through which type of excretion does insensible fluid loss NOT occur?

    <p>Urinary output</p> Signup and view all the answers

    What is the main reason why potassium chloride should always be diluted in IV fluid and infused via an infusion pump?

    <p>To avoid cardiac arrest</p> Signup and view all the answers

    Why should the nurse carefully monitor the IV site during the administration of potassium chloride?

    <p>To monitor for vein irritation and phlebitis</p> Signup and view all the answers

    What action should the nurse take if the urinary output during potassium chloride administration falls below 30 mL/hr?

    <p>Contact the physician</p> Signup and view all the answers

    Why is giving potassium chloride by IV push considered dangerous?

    <p>It can result in cardiac arrest</p> Signup and view all the answers

    What is the primary reason for the nurse to ensure that the IV bag containing potassium chloride is accurately labeled?

    <p>To know the quantity of potassium in the fluid</p> Signup and view all the answers

    Why is it important for the nurse to monitor for infiltration during the administration of potassium chloride?

    <p>To detect potential complications early</p> Signup and view all the answers

    Which electrocardiographic changes are expected in a client with hyperkalemia?

    <p>Peaked T waves, flat P waves, widened QRS complexes, prolonged PR interval</p> Signup and view all the answers

    What serum sodium level indicates hyponatremia?

    <p>130 mEq/L (130 mmol/L)</p> Signup and view all the answers

    Which client is at risk for hypernatremia?

    <p>A client with hyperaldosteronism</p> Signup and view all the answers

    What is the normal serum sodium level range?

    <p>135 to 145 mEq/L (135 to 145 mmol/L)</p> Signup and view all the answers

    Which condition can cause a serum sodium level of 130 mEq/L?

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

    What cognitive skill is required to recognize the expected electrocardiographic changes in hyperkalemia?

    <p>Recognizing cues</p> Signup and view all the answers

    Which condition is most likely to cause a client to be at risk for fluid volume excess based on the text?

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

    What electrolyte imbalance is associated with prolonged QT interval on an ECG?

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

    Which client condition would most likely lead to a serum phosphorus level of 1.8 mg/dL (0.58 mmol/L)?

    <p>Diabetic ketoacidosis (DKA)</p> Signup and view all the answers

    In a client with Crohn’s disease, what calcium level indicates hypercalcemia?

    <p>$12$ mg/dL</p> Signup and view all the answers

    Which electrolyte imbalance is commonly associated with muscle tetany and Chvostek's sign?

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

    What cognitive skill is required to anticipate the effects of increased intravenous fluid replacement on a client's fluid balance?

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

    Study Notes

    Fluid and Electrolyte Imbalance

    • A fluid volume deficit occurs when the fluid intake is insufficient to meet the fluid needs of the body
    • Causes of fluid volume deficit:
      • Vomiting
      • Diarrhea
      • Conditions that cause increased respirations or increased urinary output
      • Insufficient intravenous fluid replacement
      • Draining fistulas
      • Presence of an ileostomy or colostomy

    Hyponatremia

    • Normal serum sodium level: 135-145 mEq/L (135-145 mmol/L)
    • Serum sodium level of 130 mEq/L (130 mmol/L) indicates hyponatremia
    • Can occur in clients taking diuretics
    • Clients taking corticosteroids and clients with hyperaldosteronism or Cushing's syndrome are at risk for hypernatremia

    Hypocalcemia

    • Normal serum calcium level: 9-10.5 mg/dL (2.25-2.75 mmol/L)
    • Serum calcium level lower than 9 mg/dL (2.25 mmol/L) indicates hypocalcemia
    • Electrocardiographic changes:
      • Prolonged QT interval
      • Prolonged ST segment
    • Clients with Crohn's disease are at risk for hypocalcemia

    Hyperkalemia

    • Electrocardiographic changes:
      • Tall peaked T waves
      • Flat P waves
      • Widened QRS complexes
      • Prolonged PR interval
    • Clients with chronic kidney disease are at risk for hyperkalemia

    Insensible Fluid Loss

    • Occurs daily through the skin and lungs
    • Cannot be measured accurately, only approximated
    • Example: 800 mL daily

    Potassium Chloride Administration

    • Must be diluted in IV fluid and infused via an infusion pump
    • Never given by IV push
    • Monitor for signs of infiltration or phlebitis
    • Monitor urinary output and contact physician if less than 30 mL/hr

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    Description

    Test your knowledge on the signs and symptoms of hyponatremia in a client with heart failure receiving high doses of diuretics. Choose the additional sign that the nurse would expect to note in a client with hyponatremia.

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