Diagnostic Testing in Healthcare

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What is the main purpose of the pre-test phase in diagnostic testing?

To compare previous and current test results

To collect the blood specimen

To perform the nursing interventions

To provide the client with detailed information about the diagnostic test (correct)

What does a low RBC count indicate?

Anemia (correct)

Iron deficiency

Polycythemia Vera

Leukocytosis

What is the normal range for serum sodium levels?

135-145 mEq/L (correct)

150-160 mEq/L

165-175 mEq/L

120-130 mEq/L

What is the purpose of the WBC differential?

To determine the percentage of each type of WBC Signup and view all the answers

What is the therapeutic range for digoxin levels?

0.8-2 ng/mL Signup and view all the answers

What is the purpose of the post-test phase in diagnostic testing?

To perform follow-up activities and observations Signup and view all the answers

What is the primary purpose of determining LACTIC DEHYDROGENASE (LDH) levels in blood chemistry?

To identify skeletal muscle damage Signup and view all the answers

What is the primary purpose of screening newborns for Phenylketonuria (PKU)?

To identify PKU, a genetic disorder Signup and view all the answers

What is the purpose of the guaiac test in stool specimen analysis?

To identify occult blood Signup and view all the answers

Why should clients avoid certain foods and substances before a guaiac test?

To avoid false positive results Signup and view all the answers

What is the purpose of arterial blood gases analysis?

To evaluate respiratory function Signup and view all the answers

What is the primary responsibility of a nurse when collecting a blood specimen?

To ensure the correct procedure is followed Signup and view all the answers

What is the primary purpose of abdominal paracentesis?

To relieve pressure on abdominal organs caused by fluid accumulation Signup and view all the answers

Which of the following is a common site for bone marrow biopsy?

Posterior superior iliac crest Signup and view all the answers

What is the primary purpose of thoracentesis?

To remove excess fluid from the pleural cavity Signup and view all the answers

What is the position of the patient during a lumbar puncture?

Knee-chest position Signup and view all the answers

What is the primary purpose of a liver biopsy?

To obtain a sample of liver tissue for laboratory examination Signup and view all the answers

What is the primary purpose of a bone marrow biopsy?

To obtain a sample of bone marrow for laboratory examination Signup and view all the answers

What is the ideal time to collect a urine specimen?

Morning Signup and view all the answers

What is the purpose of measuring urine pH?

To measure acidity and alkalinity Signup and view all the answers

What is the indication of ketones in urine?

Fatty acid breakdown Signup and view all the answers

Why is a clean-catch midstream urine specimen collected?

For urine culture Signup and view all the answers

What is the purpose of a 24-hour urine collection?

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

What is the procedure for collecting a sputum specimen?

Expectorate directly into a container Signup and view all the answers

What is the purpose of an indirect visualization procedure?

To visualize the internal organs indirectly Signup and view all the answers

What is the purpose of a KUB X-ray?

To visualize the kidney, ureters, and bladder Signup and view all the answers

What is the purpose of an electrocardiogram (ECG)?

To assess cardiac function Signup and view all the answers

What is the purpose of a positron emission tomography (PET) scan?

To visualize the metabolic activity of organs Signup and view all the answers