Deck 20: Specimen Collection

Question 1

State the reason why occult blood test results using the gamma Fe-Cult Plus procedure is read within 30 seconds.

Answer 1

Color reaction fades within 30 seconds.

Question 2

Gently massaging the base of the finger is used to __________ to the fingertip when obtaining a blood sample for testing glucose.

Answer 2

Increase blood flow.

Question 3

The waiting time before wiping blood from the chemstrip is __________ seconds.

Answer 3

60

Question 4

Which one of the following statements identifies a correct nursing action when collecting a 24-hour urine specimen that is to begin at 9 a.m.?

A)Have the client void at 9 a.m. ,place urine in the container,and label as beginning time for 24-hour specimen.
B)A specimen is collected at 9 a.m.and discarded,and then at the next voiding,the time is documented as the starting time and urine is saved for the next 24 hours.
C)The urine is saved for a 24-hour period starting and ending with a voided specimen at 9 a.m.each day.
D)The first voided specimen at 9 a.m.is discarded,the urine is saved for 24 hours,with the last specimen collected at 9 a.m.the following day.

Question 5

List three symptoms that you would teach client to look for when testing for ketone bodies at home.
a.-----------
b.----------
c.----------

Question 6

If a portion of the 24-hour urine specimen becomes contaminated with stool,you should

A)Add the contaminated urine to the 24-hour container,noting on the container that some urine may have been lost when discarding the stool.
B)Throw the contaminated specimen away and continue the collection,making note of the approximate urine lost.
C)Send the urine specimen to the laboratory and explain that the specimen collection was stopped due to contamination.
D)Discard the specimen and begin the 24-hour collection again.

Question 7

Which one of the following statements is true regarding the collection of a stool specimen?

A)Specimens needed for amoeba or flagellate identification should be refrigerated immediately.
B)Parasite identification can occur even following a barium enema procedure.
C)Stool contaminated with urine cannot be used to detect the presence of amoebas.
D)One specimen is sufficient to determine the presence of trophozoites.

Question 8

The blood glucose color chart is checked for results __________ seconds after the blood is placed on the chemstrip.

Question 9

The most appropriate method to prevent a urine specimen from being contaminated with skin flora is to instruct the client to remove the bottle __________ the flow of urine stops and __________ releasing the labia or penis.

Question 10

Fill in the standard values of a Chem 7 blood test.
a.----------
------------
Potassium--------
b.-----------
Sodium
c.Chloride
d.CO₂
e.Glucose (fasting)
f.BUN
g.Creatinine

Question 11

Place in sequence from 1 to 5 the steps for withdrawing a venous blood specimen.
__________ a.Place bevel of needle pointed up and at a 30° angle.
__________ b.Cleanse the venipuncture site.
__________ c.Place a tourniquet above venipuncture site.
__________ d.Instruct the client to open and close fist.
__________ e.Remove top from laboratory tube.(Alternate method. )

Question 12

Which one of the following nursing actions is carried out when obtaining a stool specimen for ova and parasites?

A)The specimen should be obtained using a sterile bedpan.
B)Refrigerate the specimen immediately to preserve the parasite.
C)Send specimen immediately (within 30 minutes)to the laboratory.
D)Guaiac is applied to the stool specimen.

Question 13

What is the next nursing action when the blood glucose color chart indicates a reading is darker than 240 mg/dL?

Question 14

Match the appropriate method for obtaining blood studies in column A with the type of specimen in column B.There is more than one right answer.
Column A

A)Venous
B)Capillary
C)Arterial
Column B
1)Electrolytes
2)Blood gases
3)Hemoglobin/hematocrit
4)WBC
5)Differential count
6)Cultures

Question 15

Explain how point-of-care testing could change bedside nursing.

Question 16

To ensure accurate results when using a glucometer,what needs to be checked on both the calibration strip and the chemstrip bottle?

Question 17

The best time to collect a stool specimen for pinworms is

A)Early morning.
B)Late at night.
C)After the bath.
D)After lunch.

Question 18

The Penlet (sampling pen)is placed at the tip of the finger to obtain a blood sample for glucose testing.

Question 19

Jane has been ordered to have blood work drawn for serum electrolytes.She is on bed rest and has an IV in the basilic vein of the right forearm.The most appropriate site for blood withdrawal is

A)Left upper arm (brachial vein).
B)Right forearm (radial vein).
C)Foot (greater saphenous vein).
D)Left forearm (median cubital vein).

Question 20

Why must most anaerobes be transported in tubes filled with carbon dioxide or nitrogen?

Question 21

Why is it important to know what test a sputum sample is being collected for?

Question 22

Obtaining a blood specimen from an elderly client may be difficult as a result of .

Question 23

LVN/LPNs can withdraw blood specimens if they

A)Have received in-service education.
B)Practiced the skill in their nursing program.
C)Are IV certified.
D)Are the team leader in a facility.

Question 24

When obtaining a throat culture specimen,the applicator stick is placed in a culture tube,allowed to sit for a few minutes in the medium to collect organisms,and discarded.Then,the culture tube is sent to the laboratory.