Nursing Lab Values and Diuretics
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Questions and Answers

Which medication classification is used to relax the muscles around the airway in the treatment of asthma?

  • Corticosteroids
  • Beta-2 agonists (correct)
  • Anticholinergics
  • Methylxanthines
  • Which of these medications is an example of an anticholinergic bronchodilator commonly used in asthma treatment?

  • Prednisolone
  • Ipratropium (correct)
  • Albuterol
  • Theophylline
  • Which medication is classified as a methylxanthine and used as a bronchodilator?

  • Tiotropium
  • Theophylline (correct)
  • Albuterol
  • Prednisone
  • Which of these medications is classified as a corticosteroid, often used in asthma management?

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

    According to the content provided, which Bible verse can be found in Joshua 1:9?

    <p>Be strong and of good courage; do not be afraid, nor be dismayed. (B)</p> Signup and view all the answers

    What does a PaCO2 value of 50 indicate within the context of acid-base balance?

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

    A patient's arterial blood gas (ABG) results show a pH of 7.30. This indicates:

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

    Which of the following is NOT a primary factor affecting lung compliance?

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

    What is the primary function of surfactant in the lungs?

    <p>To decrease surface tension within the alveoli (A)</p> Signup and view all the answers

    Which of the following best describes the function of chemoreceptors in the respiratory system?

    <p>Monitor oxygen and carbon dioxide levels and cause vasoconstriction during acidosis (D)</p> Signup and view all the answers

    What role do the aortic and carotid bodies play in respiration?

    <p>Monitor O2 and CO2 levels (D)</p> Signup and view all the answers

    Which of the following is likely a consequence of a zinc deficiency?

    <p>Olfactory nerve damage (B)</p> Signup and view all the answers

    During normal breathing, which phase of respiration is typically longer?

    <p>Expiration (D)</p> Signup and view all the answers

    During inhalation, which muscles primarily facilitate the movement of air into the lungs?

    <p>Diaphragm and external intercostals (B)</p> Signup and view all the answers

    Which of the following best describes the sound of 'crackles' when auscultating lung sounds?

    <p>A popping or bubbling sound suggesting the presence of fluid (C)</p> Signup and view all the answers

    What is the primary nursing responsibility immediately following a bronchoscopy to ensure patient safety?

    <p>Confirming the return of the gag reflex before feeding (B)</p> Signup and view all the answers

    A patient's peak flow reading is in the yellow zone. What percentage range does this fall into, and what could it indicate?

    <p>50% to 80%, indicating a need for caution (A)</p> Signup and view all the answers

    When collecting a sputum culture, what is the recommended technique prior to expectorating into the container?

    <p>Taking 2–3 deep breaths and then coughing (D)</p> Signup and view all the answers

    Which blood test would assist in identifying the inflammatory markers in the body?

    <p>CRP/ESR (D)</p> Signup and view all the answers

    A patient is showing new onset of confusion. What is the FIRST action a nurse should take?

    <p>Check oxygen saturation and pulse (C)</p> Signup and view all the answers

    Which of these oxygen delivery devices would be most appropriate for a patient who only needs a low-flow rate such as 3L?

    <p>Nasal cannula (D)</p> Signup and view all the answers

    A patient's lab results show a BUN of 25 and a hematocrit of 50%. Which of the following conditions is most likely?

    <p>Fluid volume deficit (C)</p> Signup and view all the answers

    A patient with hypervolemia would likely exhibit which of the following regarding their Central Venous Pressure (CVP)?

    <p>Increased CVP (D)</p> Signup and view all the answers

    Which of the following diuretics primarily works by inhibiting sodium chloride reabsorption?

    <p>Hydrochlorothiazide (Hydrodiuril) (C)</p> Signup and view all the answers

    A patient has a serum sodium level of 128 mEq/L and is demonstrating signs of fluid overload. Which of the following nursing interventions is most appropriate?

    <p>Measure intake and output, daily weights (C)</p> Signup and view all the answers

    Which of the following intravenous fluids would be classified as hypotonic?

    <p>0.45% NaCl (B)</p> Signup and view all the answers

    How does the body compensate for an increase in acid and a decrease in base in the blood?

    <p>Increase the rate of breathing (A)</p> Signup and view all the answers

    Which of the following best describes the role of ADH in fluid regulation?

    <p>To retain fluids by kidney action (C)</p> Signup and view all the answers

    A patient is experiencing excessive fluid loss due to diarrhea. Which acid-base imbalance are they most likely to develop?

    <p>Metabolic acidosis (D)</p> Signup and view all the answers

    A patient with Syndrome of Inappropriate Antidiuretic Hormone Secretion (SIADH) would most likely exhibit which of the following?

    <p>Fluid volume excess with low serum sodium levels (D)</p> Signup and view all the answers

    Which of the following is the correct method for administering potassium intravenously?

    <p>Administer slowly using an infusion pump (A)</p> Signup and view all the answers

    What is the primary action of short-acting beta2-adrenergic agonists in the treatment of asthma?

    <p>Dilate the bronchial passages (B)</p> Signup and view all the answers

    Which of the following is a symptom of Legionnaire's disease?

    <p>Dry cough with bloody mucus, high fever/chills (D)</p> Signup and view all the answers

    What is the recommended oxygen saturation level for patients with COPD on home oxygen therapy?

    <p>90% (D)</p> Signup and view all the answers

    What is the primary action of mucolytics in the treatment of upper respiratory infections?

    <p>To act as an anti mucus agent (B)</p> Signup and view all the answers

    A patient experiencing aspiration should be immediately positioned in which way?

    <p>On their side (C)</p> Signup and view all the answers

    What is a defining characteristic of emphysema?

    <p>Barrel chest and decreased breath sounds (A)</p> Signup and view all the answers

    What is the primary method of producing the flu vaccine?

    <p>Extracting from chicken eggs (D)</p> Signup and view all the answers

    Which of the following is a risk factor associated with sleep apnea?

    <p>Narrowing of airways (B)</p> Signup and view all the answers

    What is the function of alpha 1 antitrypsin in the lungs?

    <p>To inhibit neutrophil elastase activity and protect the lung (A)</p> Signup and view all the answers

    Which type of pneumonia is characterized by a dry cough with no mucus and decreased cough/gag reflex?

    <p>Pneumocystis Pneumonia (B)</p> Signup and view all the answers

    Flashcards

    Fluid Volume Excess (FVE)

    Fluid volume excess is a condition characterized by an abnormal accumulation of fluid in the body, leading to an increase in the total body water. It can be caused by various factors, including heart failure, kidney disease, and liver disease.

    Fluid Volume Deficit (FVD)

    Fluid volume deficit (FVD) is a condition that occurs when the body loses more fluids than it takes in, leading to a depletion of bodily fluids. It can be caused by dehydration, excessive sweating, vomiting, and diarrhea.

    BUN

    This value reflects the concentration of nitrogenous waste products in the blood, primarily urea. High BUN levels indicate increased nitrogenous waste in the blood, signifying potential problems like dehydration or kidney issues.

    Creatinine

    Creatinine is produced as a byproduct of muscle metabolism. A high creatinine level is often a sign of decreased kidney function and may signal kidney damage or failure.

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    Sodium (Na)

    Sodium is a major electrolyte found in the blood and plays a crucial role in maintaining fluid balance. High sodium levels can be a sign of dehydration.

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    Potassium (K)

    Potassium (K+) is essential for proper nerve and muscle function, including heart rhythm regulation. High potassium levels could lead to heart problems like arrhythmias

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    Calcium (Ca)

    Calcium (Ca) is vital for strong bones, muscle function, and nerve conduction. High calcium levels can be associated with underlying medical conditions.

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    Loop Diuretics

    Loop diuretics, such as furosemide, affect the ascending limb of the loop of Henle, a portion of the kidney responsible for reabsorbing essential electrolytes.

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    Thiazide Diuretics

    Thiazide diuretics, like hydrochlorothiazide, work in the distal convoluted tubule of the kidney to prevent the reabsorption of sodium and chloride.

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    Potassium-Sparing Diuretics

    Potassium-sparing diuretics, like spironolactone, work by blocking aldosterone, a hormone that promotes sodium reabsorption and potassium excretion.

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    Inspiration

    The process of breathing in, which involves the contraction of the diaphragm and external intercostal muscles, expanding the lung volume and drawing in air.

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    Exhalation

    The process of breathing out, which involves the relaxation of the diaphragm and the contraction of abdominal muscles, reducing lung volume and expelling air.

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    Stridor

    A high-pitched, noisy breathing sound caused by a blockage in the upper airway, often a medical emergency.

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    Crackles

    Rattling or crackling sounds heard in the lungs, usually caused by fluid in the alveoli.

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    Wheezes

    A whistling sound heard in the lungs, usually caused by narrowing of the airways.

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    Peak flow monitoring

    A test that measures the amount of air a person can exhale forcefully, used to assess lung function.

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    Bronchoscopy

    A medical procedure to directly visualize the airway using a flexible tube, often requiring sedation.

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    Cannula

    A breathing device that delivers oxygen to a patient through prongs placed in the nostrils.

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    pH

    The measurement of the acidity or alkalinity of blood, ranging from 7.35 to 7.45, with values below 7.35 indicating acidosis and values above 7.45 indicating alkalosis.

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    Bicarbonate (HCO3)

    A type of electrolyte that plays a crucial role in maintaining the pH balance of blood and body fluids. It's measured in milliequivalents per liter (mEq/L).

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    Partial Pressure of Carbon Dioxide (PaCO2)

    The partial pressure of carbon dioxide in arterial blood, reflecting the amount of CO2 in the blood. Its normal range is 35 to 45 mm Hg.

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    Aortic and Carotid Bodies

    The sensory organs located in the aorta and carotid arteries that detect changes in oxygen and carbon dioxide levels in the blood.

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    Baroreceptors

    Specialized cells responsible for detecting changes in blood pressure and sending signals to the brain to adjust heart rate and blood vessel diameter.

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    Chemoreceptors

    Specialized cells sensitive to acidity (acidosis) in the blood and trigger vasoconstriction to help regulate blood flow.

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    Pleural Space

    The space between the visceral and parietal pleura surrounding the lungs, filled with a lubricating fluid that reduces friction during breathing.

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    Lung Compliance

    The distensibility of the lungs, reflecting their ability to expand and contract with each breath.

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    Cephalosporins

    A class of antibiotics that work by inhibiting bacterial cell wall synthesis. They are effective against a wide range of bacteria, including gram-positive and gram-negative organisms.

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    Fluoroquinolones

    A class of antibiotics that work by inhibiting bacterial DNA synthesis. They are effective against a wide range of bacteria, including gram-positive and gram-negative organisms.

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    Bronchodilators

    Medications that help open up the airways in the lungs by relaxing the muscles around the airways.

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    Beta-2 Agonists

    A type of bronchodilator that works by stimulating beta-2 receptors in the lungs, causing relaxation of the airway muscles.

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    Anticholinergics

    A type of bronchodilator that works by blocking the action of acetylcholine, a neurotransmitter that constricts the airways.

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    Community Acquired Pneumonia (CAP)

    A type of pneumonia that is acquired in the community, not a hospital setting.

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    Hospital Acquired Pneumonia (HAP)

    A type of pneumonia that develops in a hospital setting, usually 48 hours or more after admission.

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    Ventilator Associated Pneumonia (VAP)

    A type of hospital-acquired pneumonia that develops in a patient who is using a ventilator.

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    Legionnaire's Disease

    A serious lung infection caused by bacteria found in freshwater sources. It commonly affects the lungs and can be fatal.

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    Atypical Pneumonia

    A broad category of pneumonia that includes a variety of causes, often involving infections like Mycoplasma or viruses.

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    Viral Pneumonia

    Pneumonia caused by a virus, with symptoms that resemble a cold or flu.

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    Pneumocystis Pneumonia

    A severe lung infection that primarily occurs in individuals with weakened immune systems, especially those with HIV or AIDS.

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    Aspiration Pneumonia

    Pneumonia caused by inhaling food, liquids, or vomit into the lungs.

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    Sleep Apnea

    A disorder characterized by repeated episodes of paused or shallow breathing during sleep. It can lead to daytime sleepiness and health complications.

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    Asthma

    A chronic lung disease that causes inflammation and narrowing of the airways, leading to difficulty breathing.

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    Study Notes

    Lab Values

    • BUN: 10 to 20
    • Hematocrit: 38 to 45%
    • Creatinine: 0.6 to 1.2
    • Osmolality: 275 - 295
    • Specific gravity: 1.003 to 1.030
    • WBC: 5,000 to 10,000
    • Glucose: 70 to 110
    • Low number = FVE (Fluid Volume Excess)
    • High number = FVD (Fluid Volume Deficit)

    Electrolytes

    • Na: 135 to 145
    • K: 3.5 to 5.3
    • Ca: 9 to 11
    • Mg: 1.8 to 3
    • Phos: 2.5 to 4.5
    • Cl: 97 to 110

    Medications (Diuretics)

    • Loop Diuretics: Furosemide (Lasix) - Effects the ascending limb of the loop of Henle
    • Thiazide Diuretics: Hydrochlorothiazide (Hydrodiuril) - Inhibits sodium chloride reabsorption
    • Potassium-Sparing Diuretics: Spironolactone (Aldactone) - Increases potassium reabsorption by preventing sodium reabsorption
    • Renagel: removal of phosphate
    • Kayexalate: removal of potassium

    IV Fluids

    • Isotonic: Enter cells evenly (0.9% NS, LR)
    • Hypotonic: Enters cells (0.45% NaCl)

    Fluid Shifting

    • Fluids shift from extracellular to intracellular spaces

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    Description

    This quiz covers essential lab values, electrolytes, and diuretics used in nursing. It will test your knowledge on normal ranges, fluid imbalances, and the effects of various medications on electrolyte levels. Prepare to enhance your understanding of these critical concepts in patient care.

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