Capillary blood collection would not be appropriate for which patient type?
a) patients with veins that are difficult to access
b) patients who are
... [Show More] severely dehydrated
C) patients who are extremely obese
D) infants - correct answer patients who are severely dehydrated
Explanation:
Capillary blood collection is appropriate for every patient type listed except for severely dehydrated patients. Capillary blood collection is the preferred method for blood specimen collection in infants and children.
You are doing a venipuncture on a patient's arm. Where should you place the tourniquet?
A) A tourniquet is not advised for this procedure.
b) Place it at the puncture site.
c) Place it below the puncture site.
d) Place it above the puncture site. - correct answer Place it above the puncture site.
Explanation:
A tourniquet applied above the puncture site will help increase venous pressure in the area where the blood will be obtained. Increased venous pressure makes the veins easier to see and feel, and increases the odds of collecting a specimen on the first try.
Which location would be the best choice for a finger stick in a patient over 1 year old?
a) the middle of the thumb on whichever hand the patient prefers
b) slightly off center on the middle or ring finger of the nondominant hand
c) the middle of the middle or ring finger on whichever hand the patient prefers
d) slightly off center on the thumb of the nondominant hand - correct answer slightly off center on the middle or ring finger of the nondominant hand
Explanation:
The best choice for a finger stick in this age group is the middle or ring finger of the nondominant hand. The stick should be slightly off-center to avoid the fleshy middle part of the finger. The nondominant hand is typically the best choice because it is usually less calloused. The thumb should be avoided because it has an arterial presence.
What is a normal blood potassium level?
a) 7.5 mEq/L-9 mEq/L
b) 3.5 mEq/L5.0 mEq/L
c) 6.2 mEq/L-7.5 mEq/L
d) 1.4 mEq/L-3.5 mEq/L - correct answer 3.5 mEq/L5.0 mEq/L
Explanation:
A normal blood potassium is between 3.5 mEq/L and 5.0 mEq/L. Numbers outside of this range can have a serious negative impact on the body.
Blood is made of three components: red blood cells, plasma, and white blood cells/platelets. One is approximately 55%, one is approximately 44%, and the other is approximately 1% of blood volume. Which value belongs to which component?
a) Plasma: 44%
Red Blood Cells: 55%
Platelets/WBCs: 1%
b) Plasma: 55%
Red Blood Cells: 1%
Platelets/WBCs: 44%
c) Plasma: 55%
Red Blood Cells: 44%
Platelets/WBCs: 1%
d) Plasma: 1%
Red Blood Cells: 55%
Platelets/WBCs: 44% - correct answer Plasma: 55%
Red Blood Cells: 44%
Platelets/WBCs: 1%
Explanation:
Blood is composed of approximately 55% plasma, 44% red blood cells, and 1% platelets and white blood cells.
Which of the following conditions may complicate tourniquet use?
a) Addison's disease
b) Cushing Sydrome
c) Thyroid tumor
d) Sickle Cell disease - correct answer Sickle Cell disease
Explanation:
Sickle cell disease is an inherited condition that affects the hemoglobin in red blood cells. Using a tourniquet without taking proper precautions may cause circulatory stasis and therefore cause complications.
A patient reports an iodine allergy. To be safe, which of the following solutions would you avoid when cleansing his skin for a blood draw?
a) Alcohol
b) Chloraprep
c) Hibiclens
d) Betadine - correct answer Betadine
Explanation: [Show Less]