Chapter 11 Flashcards Preview

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Flashcards in Chapter 11 Deck (19):

What is a cannula

Tubular instrument used to gain access to venous blood


Which of the following tests is measured using the CoaguChek XS system



What is the reason for collecting a 24 hour urine specimen from a patient

Test for cortisol


During a glucose tolerance test which procedure is acceptable

Fasting blood collection is performed and then a standard amount of glucose drink is given to patient


Of the two arteries compressed on the patient during the modified Allen Test which one of those arteries is listed below

ulnar artery


Which of the following supplies if not needed to test with the HemoCue system



If patient allergic to iodine alternative cleansing solution used

Chlorhexidine gluconate


Random specimen

Reason -Most convient to obtain

Use- Routine UA


First urine in the morning

Reason-urine excretion is most concentrated

Use-quantitive and qualitive protein, nitrate, microscopic analysis



Reason-metabolic abnormalities are suspected

Use-glucose level determination for diabetes mellitus testing


Clean-catch midstream

Reason- specimen is free of contamination

Use-culture for bacteria and or microscopic analysis


Timed ex. (2hour, 4 hour, or 24 hour)

Reason- the excretion rate of the analyte can be determined

Use-creatinine clearance test, urobilinogen determinations, hormone studies


Tolerance test

Reason- timed blood and urine specimen are obtained to detect metabolic abnormalities

Use-GTT and other tolerance tests


Types of urine specimens


-First urine of morning


-Clean catch midstream

-Timed (ex. 2 hr, 4hr, or 24 hr)

-Tolerance test



Tubular instrument used in patients with kidney disease to gain access to venous blood for dialysis or blood collections



Artificial shiny in which the vein and artsy have been fused through surgery.

It is permanent connection tube located in the ark of patients undergoing kidney dialysis


The 2 hour postprandial ( after a meal) glucose test

Can be used to screen patients for diabetes ( including gestational diabetes )

Glucose levels in serum specimens collected 2 hrs after a meal are rarely elevated in normal patients

Diabetes patients usually have increased values 2 hrs after a meal

For this test patient should be placed on high carb diet for 2-3 days before the test.

Day of test patient should consume 75 grams of glucose

Should eat orange juice ,cereal with sugar,toast,and milk

Specimen is taken 2 hrs after patient finishes breakfast

Glucose level of this test determines if physician should test for GTT or A1c is needed


The American Diabetes Association Standards of Care-2011

Recommends patients that have symptoms suggesting problems in carbs,sugar such as diabetes mellitus the 2 hr oral glucose tolerance test (OGTT or GTT) can be effective


Blood cultures

Often collected from patients who have fevers of unknown origin (FUO)

Sometimes during the course of a bacterial infection in one location of the body bacteremia (presence if bacteria in the blood) or septicemia (presence of pathogens in the circulating blood stream sometimes called blood poisoning) may result and become the dominant clinical feature

Septicemia is a major cause of death in United States

Blood cultures help identify bacterial organism causing the infections

Venipuncture is the method used for collecting blood specimens for blood cultures