115 Unit 5 Diagnostic Tests

Question 1

____ measures the pressure of O2 and CO2 in the blood and blood pH to assess the adequacy of the patient’s oxygenation, ventilation, and perfusion. Normal Values: pH 7.35 - 7.45, PCO2 35-45 mmHg, PO2 80-100mmHg, HCO3 22-26 mEq/L.

Answer 1

Arterial Blood Gas and pH Analysis

Question 2

____ is the Microscopic examination of cells in the sputum.
Purpose: To determine malignancy. Normal Value: absence of disease.

Answer 2

Sputum Cytology

Question 3

____ is the Microscopic examination of sputum.

Purpose: to determine the presence of pathogenic bacteria

Answer 3

Sputum Culture ans sensitivity

Question 4

___ is Direct visualization of a body cavity.

Answer 4

Endoscopic Studies

Question 5

____ examine the larynx, bronchi, and trachea. To examine lesions, remove foreign objects, drain abscesses or improve drainage, assess trauma, and obtain tissue samples (biopsies).

Answer 5

Bronchoscopy

Question 6

____ are intradermal tests done to determine antigen-antibody reactions.
Purpose: To determine immune response.

Answer 6

Skin Tests

Tuberculosis skin testing

Question 7

____ is an X-Ray exam of the lungs and thoracic cavity.

To diagnose pulmonary diseases, assess the progression of disease and detect fluid/secretions and air in the lungs.

Answer 7

Radiography

Question 8

____ is The recording of the emissions of radioactive waves on a photographic plate. The waves are from a substance which is injected in the patient’s vein and then circulates through the lung.
To identify defects in blood perfusion of the lung.
Perfusion Scan (Q scan): measures integrity of pulmonary blood vessels and evaluates blood flow problems such as pulmonary emboli.
Ventilation scan (V scan) detects ventilation problems such as in emphysema patients.
May be used together (VQ scan) for more diagnostic information.

Answer 8

Lung Scan

Question 9

____ is Sputum Analysis (See above under cytology and sputum culture and sensitivity).
Throat Culture (review in Mosby’s Diagnostic and Lab Test Reference on pg. 903-904).
Complete Blood Count (CBC) and differential (review in Mosby’s Diagnostic and Lab Test Reference on pg. 280).
Pulmonary function studies (review in Mosby’s Diagnostic and Lab Test Reference on pg. 783-788).

Answer 9

Pathogen Diagnostic Tests