« previous next »

Author Question: A patient has an increased red count, hemoglobin, and hematocrit. Which of the following features ... (Read 70 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?

More than 30% of American adults, and about 12% of children utilize health care approaches that were developed outside of conventional medicine.

Did you know?

In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.

Did you know?

Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.

Did you know?

The tallest man ever known was Robert Wadlow, an American, who reached the height of 8 feet 11 inches. He died at age 26 years from an infection caused by the immense weight of his body (491 pounds) and the stress on his leg bones and muscles.

Did you know?

The top 10 most important tips that will help you grow old gracefully include (1) quit smoking, (2) keep your weight down, (3) take supplements, (4) skip a meal each day or fast 1 day per week, (5) get a pet, (6) get medical help for chronic pain, (7) walk regularly, (8) reduce arguments, (9) put live plants in your living space, and (10) do some weight training.

Inflammation. Inflammation is characterized by the presence of swelling, redness, heat, and pain. Sw Inflammation. Inflammation is characterized by the presence of swelling, redness, heat, and pain. Sw
Patient teaching: health promotion to prevent osteroporosis in women Patient teaching: health promotion to prevent osteroporosis in women
Cranial capacity has increased approximately fourfold over the last 3.5 million years of hominin evo Cranial capacity has increased approximately fourfold over the last 3.5 million years of hominin evo
El Greco, The Burial of Count Orgaz. El Greco, The Burial of Count Orgaz.
Promoting Adherence in the Older Adult Patient Promoting Adherence in the Older Adult Patient
Ex vivo and in vivo gene therapy for a patient with a liver disorder Ex vivo and in vivo gene therapy for a patient with a liver disorder
Video: Bulk flow - Factors that influence bulk flow

For a complete list of videos, visit our video library