Diagnostic Lab Tests and Phases

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

To provide basic screening

Where can diagnostic testing be performed?

In various environments, including hospitals, clinics, and mobile units

What is the primary focus of the pretest phase?

Client preparation and assessing pregnancy possibility

What is typically done during the pretest phase?

Asking common questions and preparing supplies Signup and view all the answers

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

Whether they are pregnant or not Signup and view all the answers

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

To inform the client about the test procedure and any necessary preparations Signup and view all the answers

What does an increase in serum osmolality indicate?

Fluid volume deficit Signup and view all the answers

What is the purpose of therapeutic drug monitoring?

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

What is the advantage of capillary blood glucose testing?

It is less painful than a venipuncture Signup and view all the answers

What is the purpose of specimen collection in nursing?

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

What is a nursing responsibility associated with specimen collection?

To provide client comfort, privacy, and safety Signup and view all the answers

Why is aseptic technique used in specimen collection?

To prevent contamination that can cause inaccurate test results Signup and view all the answers

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

To ensure accurate laboratory results Signup and view all the answers

What is one of the indications for stool specimens testing?

To detect the presence of occult blood Signup and view all the answers

What type of urine specimen is required for urine culture?

Clean-catch or midstream urine specimen Signup and view all the answers

What is an important consideration when collecting urine specimens?

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

What is the purpose of a timed urine specimen?

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

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

To report abnormal findings to the physician Signup and view all the answers

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

To provide a basic screening of the hematologic system Signup and view all the answers

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

Serum electrolyte levels Signup and view all the answers

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

The percentage of red blood cells in the total blood volume Signup and view all the answers

What is the normal range for serum osmolality in adults?

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

Why might serum electrolyte levels be ordered for a client?

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

What is included in the measurement of serum osmolality?

Sodium ions, glucose, and urea (BUN) Signup and view all the answers

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

Distinguishing minor differences in the density of tissues Signup and view all the answers

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

Because of the strong magnetic field Signup and view all the answers

What is the purpose of an abdominal paracentesis?

To obtain a fluid specimen for laboratory study Signup and view all the answers

What is the purpose of a biopsy?

To determine a diagnosis or to detect malignancy Signup and view all the answers

What is normally present in the pleural cavity?

Only sufficient fluid to lubricate the pleura Signup and view all the answers

Why are aspiration and biopsy considered invasive procedures?

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