Hematopoietic System (NCLEX) Prep Exam 100% Well Answered.
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Hematopoietic system
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Hematopoietic System
A nursing student wants to know why clients with COPD tend to be polycythemic. What response by the nurse instructor is best?
a. It is due to side effects of medications for bronchodilation.
b. It is from overactive bone marrow in response to chronic disease.
c. It combats the anemia caused by a...
Hematopoietic System (NCLEX) Prep
Exam 100% Well Answered.
A nursing student wants to know why clients with COPD tend to be polycythemic. What response by the
nurse instructor is best?
a. It is due to side effects of medications for bronchodilation.
b. It is from overactive bone marrow in response to chronic disease.
c. It combats the anemia caused by an increased metabolic rate.
d. It compensates for tissue hypoxia caused by lung disease. - Answer D ~ In response to hypoxia, more
red blood cells are made so more oxygen can be carried and delivered to tissues. This is a physiologic
process in response to the disease; it is not a medication side effect, the result of overactive bone
marrow, or a response to anemia.
What is the normal lab value for Platelet Count? - Answer A normal platelet count ranges from 150,000
to 450,000 platelets per microliter of blood. Having more than 450,000 platelets is a condition called
thrombocytosis; having less than 150,000 is known as thrombocytopenia.
A client is receiving rivaroxaban (Xarelto) and asks the nurse to explain how it works. What response by
the nurse is best?
a. It inhibits thrombin.
b. It inhibits fibrinogen.
c. It thins your blood.
d. It works against vitamin K. - Answer A ~ Rivaroxaban is a direct thrombin inhibitor. It does not work
on fibrinogen or vitamin K. It is not a blood thinner, although many clients call anticoagulants by this
name.
What is the normal lab value for Red Blood Cells (RBC)? - Answer Men = 4.7 to 6.1 million cells per
microliter (mcL). Women = 4.2 to 5.4 million mcL.
Children is 4.0 to 5.5 million mcL.
The health care provider tells the nurse that a client is to be started on a platelet inhibitor. About what
drug does the nurse plan to teach the client?
,a. Clopidogrel (Plavix)
b. Enoxaparin (Lovenox)
c. Reteplase (Retavase)
d. Warfarin (Coumadin) - Answer A ~ Clopidogrel is a platelet inhibitor. Enoxaparin is an indirect
thrombin inhibitor. Reteplase is a fibrinolytic agent. Warfarin is a vitamin K antagonist.
What is the normal lab value for White Blood Cells (WBC)? - Answer 4,000 - 11,000 per microliter of
blood
A nurse is assessing a dark-skinned client for pallor. What action is best?
a. Assess the conjunctiva of the eye.
b. Have the client open the hand widely.
c. Look at the roof of the client's mouth.
d. Palpate for areas of mild swelling. - Answer A ~ To assess pallor in dark-skinned people, assess the
conjunctiva of the eye or the mucous membranes. Looking at the roof of the mouth can reveal jaundice.
Opening the hand widely is not related to pallor, nor is palpating for mild swelling.
What is the normal lab value for Hemoglobin (Hgb)? - Answer Men = 13.5 - 17.5 g/dL
Women 12.0 - 15.5 g/dL
A hospitalized client has a platelet count of 58,000/mm3. What action by the nurse is best?
a. Encourage high-protein foods.
b. Institute neutropenic precautions.
c. Limit visitors to healthy adults.
d. Place the client on safety precautions. - Answer D ~ With a platelet count between 40,000 and
80,000/mm3, clients are at risk of prolonged bleeding even after minor trauma. The nurse should place
the client on safety precautions. High-protein foods, while healthy, are not the priority. Neutropenic
precautions are not needed as the client's white blood cell count is not low. Limiting visitors would also
be more likely related to a low white blood cell count.
What is the normal lab value for Hematocrit (Hct)? - Answer Men = 38.8% - 50%
Women = 34.9% - 44.5%
, A client is having a bone marrow biopsy today. What action by the nurse takes priority?
a. Administer pain medication first.
b. Ensure valid consent is on the chart.
c. Have the client shower in the morning.
d. Premedicate the client with sedatives. - Answer B ~ A bone marrow biopsy is an invasive procedure
that requires informed consent. Pain medication and sedation are important components of care for this
client but do not take priority. The client may or may not need or be able to shower.
What is the normal lab value for Reticulocyte Count? - Answer 0.5-1.5%
A nurse is caring for four clients. After reviewing today's laboratory results, which client should the nurse
see first?
a. Client with an international normalized ratio of 2.8
b. Client with a platelet count of 128,000/mm3
c. Client with a prothrombin time (PT) of 28 seconds
d. Client with a red blood cell count of 5.1 million/L - Answer C ~ A normal PT is 11 to 12.5 seconds.
This client is at high risk of bleeding. The other values are within normal limits.
What is the normal lab value for International Normalized Ratio (INR)? - Answer 1.1 or less
A client is having a bone marrow biopsy and is extremely anxious. What action by the nurse is best?
a. Assess client fears & coping mechanism
b. Reassure the client this is a common test.
c. Sedate the client prior to the procedure.
d. Tell the client he or she will be asleep. - Answer A ~ Assessing the client's specific fears and coping
mechanisms helps guide the nurse in providing holistic care that best meets the client's needs.
Reassurance will be helpful but is not the best option. Sedation is usually used. The client may or may
not be totally asleep during the procedure.
A client is having a radioisotopic imaging scan. What action by the nurse is most important?
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