« previous next »

Author Question: A patient has an increased red count, hemoglobin, and hematocrit. Which of the following features ... (Read 66 times)

Pea0909berry

  • Hero Member
  • *****
  • Posts: 573
on: Jun 25, 2018
A patient has an increased red count, hemoglobin, and hematocrit. Which of the following features points to secondary polycythemia over polycythemia vera?
 
  a. Increased white count
  b. Increased red cell mass
  c. Bone marrow erythroid hyperplasia
  d. Decreased arterial oxygen saturation

Question 2

Which of the following is an expected finding in polycythemia vera?
 
  a. Thrombocytosis
  b. Anemia
  c. Low leukocyte alkaline phosphatase
  d. Normal white count


Mochi

  • Sr. Member
  • ****
  • Posts: 300
Reply #1 on: Jun 25, 2018
Answer to Question 1

ANS: D
Decreased arterial oxygen saturation is characteristic of secondary polycythemia. Arterial oxygen saturation is normal in polycythemia vera. Decreased arterial oxygen saturation leads to hypoxia, resulting in increased production of erythropoietin. This stimulates the bone marrow to increase red cell production (erythroid hyperplasia), also found in polycythemia vera. This results in an increase in red cell mass, again also found in polycythemia vera, as is an increased white count.

Answer to Question 2

ANS: A
Thrombocytosis, or an elevated platelet count, is characteristically present in polycythemia vera. Polycythemia vera has an elevated red cell mass, so anemia is not present. The leukocyte alkaline phosphatase score and the white count are both elevated.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Walt Disney helped combat malaria by making an animated film in 1943 called The Winged Scourge. This short film starred the seven dwarfs and taught children that mosquitos transmit malaria, which is a very bad disease. It advocated the killing of mosquitos to stop the disease.

Did you know?

Chronic necrotizing aspergillosis has a slowly progressive process that, unlike invasive aspergillosis, does not spread to other organ systems or the blood vessels. It most often affects middle-aged and elderly individuals, spreading to surrounding tissue in the lungs. The disease often does not respond to conventionally successful treatments, and requires individualized therapies in order to keep it from becoming life-threatening.

Did you know?

Blood is approximately twice as thick as water because of the cells and other components found in it.

Did you know?

Once thought to have neurofibromatosis, Joseph Merrick (also known as "the elephant man") is now, in retrospect, thought by clinical experts to have had Proteus syndrome. This endocrine disease causes continued and abnormal growth of the bones, muscles, skin, and so on and can become completely debilitating with severe deformities occurring anywhere on the body.

Did you know?

Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.

Leaf surface features. Leaf surface features.
Hemodialysis. The process of hemodialysis replaces the kidney function of blood filtration by forcin Hemodialysis. The process of hemodialysis replaces the kidney function of blood filtration by forcin
A nurse communicates with her non–English-speaking patient through an interpreter A nurse communicates with her non–English-speaking patient through an interpreter
All messages must be documented and placed in the patient's chart. All messages must be documented and placed in the patient's chart.
Features of a normal 12-lead ECG. Features of a normal 12-lead ECG.
Video: Premenstrual Syndrome

For a complete list of videos, visit our video library