« previous next »

Author Question: A patient has an increased red count, hemoglobin, and hematocrit. Which of the following features ... (Read 62 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?

The FDA recognizes 118 routes of administration.

Did you know?

The human body produces and destroys 15 million blood cells every second.

Did you know?

All patients with hyperparathyroidism will develop osteoporosis. The parathyroid glands maintain blood calcium within the normal range. All patients with this disease will continue to lose calcium from their bones every day, and there is no way to prevent the development of osteoporosis as a result.

Did you know?

Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.

Did you know?

Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.

Deforestation and increased road-building in the Amazon Rainforest are a significant concern because Deforestation and increased road-building in the Amazon Rainforest are a significant concern because
The nurse can make observations about the patient's general appearance while talking with the p The nurse can make observations about the patient's general appearance while talking with the p
Patient with typical rheumatoid arthritis contractures. Patient with typical rheumatoid arthritis contractures.
Pulmonary function test: spirometry. (a) Normal respiratory volumes, as measured during spirometry. Pulmonary function test: spirometry. (a) Normal respiratory volumes, as measured during spirometry.
Symptoms of a patient in shock Symptoms of a patient in shock
Positioning the Patient in the Prone Position Positioning the Patient in the Prone Position
Video: Parathyroid hormone (bone resorption) & Calcitonin (bone deposition)

For a complete list of videos, visit our video library