Diagnostic Lab Tests and Phases
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Questions and Answers

What is the primary purpose of diagnostic and laboratory tests in a wellness check?

  • To administer contrast media
  • To monitor the client's response to treatment
  • To provide basic screening (correct)
  • To diagnose a specific illness
  • Where can diagnostic testing be performed?

  • Only in hospitals and clinics
  • Only in diagnostic centers
  • Only in primary care provider's office and home
  • In various environments, including hospitals, clinics, and mobile units (correct)
  • What is the primary focus of the pretest phase?

  • Data collection and equipment preparation
  • Client preparation and assessing pregnancy possibility (correct)
  • Administration of contrast media
  • Consent form requirement
  • What is typically done during the pretest phase?

    <p>Asking common questions and preparing supplies</p> Signup and view all the answers

    What is an important consideration during the pretest phase for female clients?

    <p>Whether they are pregnant or not</p> Signup and view all the answers

    What is the purpose of asking questions during the pretest phase?

    <p>To inform the client about the test procedure and any necessary preparations</p> Signup and view all the answers

    What does an increase in serum osmolality indicate?

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

    What is the purpose of therapeutic drug monitoring?

    <p>To determine if the blood serum levels of a specific drug are at a therapeutic level</p> Signup and view all the answers

    What is the advantage of capillary blood glucose testing?

    <p>It is less painful than a venipuncture</p> Signup and view all the answers

    What is the purpose of specimen collection in nursing?

    <p>To provide important adjunct information for diagnosing health care problems and measuring responses to therapy</p> Signup and view all the answers

    What is a nursing responsibility associated with specimen collection?

    <p>To provide client comfort, privacy, and safety</p> Signup and view all the answers

    Why is aseptic technique used in specimen collection?

    <p>To prevent contamination that can cause inaccurate test results</p> Signup and view all the answers

    What is the primary reason for transporting a specimen to the laboratory promptly?

    <p>To ensure accurate laboratory results</p> Signup and view all the answers

    What is one of the indications for stool specimens testing?

    <p>To detect the presence of occult blood</p> Signup and view all the answers

    What type of urine specimen is required for urine culture?

    <p>Clean-catch or midstream urine specimen</p> Signup and view all the answers

    What is an important consideration when collecting urine specimens?

    <p>The specimen must be free of fecal or blood contamination</p> Signup and view all the answers

    What is the purpose of a timed urine specimen?

    <p>To collect all urine produced and voided over a specific period of time</p> Signup and view all the answers

    What is the nurse's responsibility regarding abnormal laboratory findings?

    <p>To report abnormal findings to the physician</p> Signup and view all the answers

    What is the primary purpose of a Complete Blood Count (CBC) test?

    <p>To provide a basic screening of the hematologic system</p> Signup and view all the answers

    Which of the following is NOT a component of a Complete Blood Count (CBC) test?

    <p>Serum electrolyte levels</p> Signup and view all the answers

    What is measured by hematocrit (Hct) in a Complete Blood Count (CBC) test?

    <p>The percentage of red blood cells in the total blood volume</p> Signup and view all the answers

    What is the normal range for serum osmolality in adults?

    <p>280 to 300 mOsm/kg</p> Signup and view all the answers

    Why might serum electrolyte levels be ordered for a client?

    <p>To assess clients treated with a diuretic for hypertension or heart failure</p> Signup and view all the answers

    What is included in the measurement of serum osmolality?

    <p>Sodium ions, glucose, and urea (BUN)</p> Signup and view all the answers

    What is the unique capability of Computed Tomography (CT)?

    <p>Distinguishing minor differences in the density of tissues</p> Signup and view all the answers

    Why can clients with implanted metal devices not undergo an MRI?

    <p>Because of the strong magnetic field</p> Signup and view all the answers

    What is the purpose of an abdominal paracentesis?

    <p>To obtain a fluid specimen for laboratory study</p> Signup and view all the answers

    What is the purpose of a biopsy?

    <p>To determine a diagnosis or to detect malignancy</p> Signup and view all the answers

    What is normally present in the pleural cavity?

    <p>Only sufficient fluid to lubricate the pleura</p> Signup and view all the answers

    Why are aspiration and biopsy considered invasive procedures?

    <p>Because they require the insertion of instruments or needles into the body</p> Signup and view all the answers

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