Chapter 16: The Hematologic System

Chapter 16: The Hematologic System

 

Complete Chapter Questions With Answers

 

Sample Questions Are Posted Below

 

MULTIPLE CHOICE

 

1. The stem cells in the marrow are stimulated to make blood cells by the erythropoietin- stimulating factor in the:

a.	brain.
b.	lung.
c.	kidney.
d.	liver.

 

 

ANS:  C

The kidney secrets the erythropoietin-stimulating factor to stimulate the stem cells to make blood cells.

 

DIF:    Cognitive Level: Comprehension     REF:   332                OBJ:   2 (theory)

TOP:   Erythropoiesis                                 KEY:  Nursing Process Step: NA

MSC:  NCLEX: Physiological Integrity: Physiological Adaptation

 

2. Red blood cells only live about _____ days.

a.	30
b.	90
c.	100
d.	120

 

 

ANS:  D

Red blood cells live approximately 120 days.

 

DIF:    Cognitive Level: Knowledge            REF:   332                OBJ:   1 (theory)

TOP:   Life of RBCs                                  KEY:  Nursing Process Step: Planning

MSC:  NCLEX: Health Promotion and Maintenance

 

3. The nurse explains that, in the event of a massive hemorrhagic episode, the _____ contracts and adds blood to the circulating volume.

a.	spleen
b.	liver
c.	pancreas
d.	bone marrow

 

 

ANS:  A

The spleen has the ability to contract and add blood to the circulating volume in the event of massive hemorrhage.

 

DIF:    Cognitive Level: Comprehension     REF:   332                OBJ:   1 (clinical)

TOP:   Spleen            KEY:  Nursing Process Step: Implementation

MSC:  NCLEX: Physiological Integrity: Physiological Adaptation

 

4. The nurse evaluates the lab reports for the patients on the unit, and recognizes the report requiring the most immediate attention is for the patient with RBCs, _____ mil/mm³; WBCs, _____ mil/mm³; and Hb, _____ g/dL.

a.	4.2; 4500; 9.1
b.	5.9; 4500; 12.7
c.	6.0; 6000; 13.2
d.	7.6; 8000; 18.0

 

 

ANS:  A

The low RBCs and low hemoglobin suggests possible anemia or blood loss. The normal range for adults is red blood cell (RBC) count 4.2 to 6.2 mil/mm³ ; white blood cell (WBC) count: 4500 to 11,000/mm³; and hemoglobin (Hb): females, 12.0 to 16.7 g/dL; males, 13.0 to 18.0 g/dL.

 

DIF:    Cognitive Level: Analysis                REF:   337 | Table 16-1

OBJ:   5 (theory)       TOP:   Blood Counts

KEY:  Nursing Process Step: Assessment   MSC:  NCLEX: Health Promotion and Maintenance