NU 328 Diagnostic Testing With
Solution
Nursing Responsibilities with Diagnostic Labs - ANSWER We reassess, review,
and revise care plans based on the results of the lab values
3 Types of Specimen Collection Procedures - ANSWER 1. Blood
2. Stool
3. Urine
Blood Collection Procedures - ANSWER -we obtain arterial blood from the
radial artery (ABGs)
-capillary blood from finger stick and for CBC in children
-venipuncture from vein (most common)
Stool Collection Procedures - ANSWER stool hat, diaper, or bedpan
Urine Collection Procedures - ANSWER clean catch, foley catheter,
mid-stream, pedi-bag, or urine hat
What is the most common technique for a blood sample? - ANSWER
-venipuncture at the antecubital site (anterior elbow)
-indicate if blood sample was taken anywhere other than a vein
-do not leave tourniquet on longer than 1 min
-do not shake the tube
,-label (name, dob, type of sample, and MAR #)
-place in biohazard bag
-if patient is obese or has severe edema avoid sticking in that area (blood is
diluted)
-do not tell patient to pump fist
-do not collect blood from an arm with a dialysis shunt; do it in the opposite
arm
-avoid drawing blood from a tattooed area; it can cause error due to the scar
tissue
-for mastectomies, avoid drawing blood from the arm that the breast was
removed
Proper Tourniquet Placement - ANSWER place 3-4 inches above the puncture
site, tying tight enough to slow venous blood flow. tie using a quick release
knot with the ends away from the site of puncture (contamination). you can
place a towel or sleeve under tourniquet to protect patient's skin from tears
or discomfort (important when drawing blood from elders)
Order of Blood Draw for Plastic Vacutainer to avoid contamination - ANSWER
1. blood culture bottle or tube
2. coagulation tube
3. non-additive tube
, 4. additive tube
Order of Blood Draw - ANSWER 1. white
2. light blue
3. red
4. green
5. lavender
6. gray
Stool Collection - ANSWER -should be free of urine, blood, and other body
fluids
-never send stool through the tube system
-screens most commonly for blood, fat, parasites, leukocytes, and pathogens.
-never place place stool in a fridge with medications or food
-if patient has red or black stool this is abnormal
-if patient has white stool it can indicate mucous or malabsorption of the gut
-for at home collection tell patient to use clean container and they can use
spoon or tongue blood
Stool Collection Process - ANSWER 1. hand hygiene and clean gloves
Solution
Nursing Responsibilities with Diagnostic Labs - ANSWER We reassess, review,
and revise care plans based on the results of the lab values
3 Types of Specimen Collection Procedures - ANSWER 1. Blood
2. Stool
3. Urine
Blood Collection Procedures - ANSWER -we obtain arterial blood from the
radial artery (ABGs)
-capillary blood from finger stick and for CBC in children
-venipuncture from vein (most common)
Stool Collection Procedures - ANSWER stool hat, diaper, or bedpan
Urine Collection Procedures - ANSWER clean catch, foley catheter,
mid-stream, pedi-bag, or urine hat
What is the most common technique for a blood sample? - ANSWER
-venipuncture at the antecubital site (anterior elbow)
-indicate if blood sample was taken anywhere other than a vein
-do not leave tourniquet on longer than 1 min
-do not shake the tube
,-label (name, dob, type of sample, and MAR #)
-place in biohazard bag
-if patient is obese or has severe edema avoid sticking in that area (blood is
diluted)
-do not tell patient to pump fist
-do not collect blood from an arm with a dialysis shunt; do it in the opposite
arm
-avoid drawing blood from a tattooed area; it can cause error due to the scar
tissue
-for mastectomies, avoid drawing blood from the arm that the breast was
removed
Proper Tourniquet Placement - ANSWER place 3-4 inches above the puncture
site, tying tight enough to slow venous blood flow. tie using a quick release
knot with the ends away from the site of puncture (contamination). you can
place a towel or sleeve under tourniquet to protect patient's skin from tears
or discomfort (important when drawing blood from elders)
Order of Blood Draw for Plastic Vacutainer to avoid contamination - ANSWER
1. blood culture bottle or tube
2. coagulation tube
3. non-additive tube
, 4. additive tube
Order of Blood Draw - ANSWER 1. white
2. light blue
3. red
4. green
5. lavender
6. gray
Stool Collection - ANSWER -should be free of urine, blood, and other body
fluids
-never send stool through the tube system
-screens most commonly for blood, fat, parasites, leukocytes, and pathogens.
-never place place stool in a fridge with medications or food
-if patient has red or black stool this is abnormal
-if patient has white stool it can indicate mucous or malabsorption of the gut
-for at home collection tell patient to use clean container and they can use
spoon or tongue blood
Stool Collection Process - ANSWER 1. hand hygiene and clean gloves
