This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: The following RBC indices are obtained on a patient when calculated using results from manual ... (Read 80 times)

jazziefee

  • Hero Member
  • *****
  • Posts: 505
on: Jun 25, 2018
The following RBC indices are obtained on a patient when calculated using results from manual methods:
 
  MCV: 73 fL
  MCH: 24 pg
  MCHC: 33.4 g/dL
 
  When the stained blood film is evaluated, the RBCs are normocytic normochromic. What conclusion can be made from this information?
 
  a. The hematocrit is too low.
  b. The hemoglobin is too low.
  c. The red count is too high.
  d. It is impossible to come to any conclusion.

Question 2

Which of the following can cause a falsely increased ESR?
 
  a. Concentration of anticoagulant increased
  b. Tube not totally vertical
  c. Tuberculosis
  d. Increased plasma viscosity


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

ttt030911

  • Sr. Member
  • ****
  • Posts: 315
Reply #1 on: Jun 25, 2018
Answer to Question 1

ANS: C
The MCHC is in the reference range and the red cells are normochromic. These then correlate with one another; therefore the hemoglobin and hematocrit appear valid. The cells are also normocytic, which means that the MCV and MCH should also both be in the reference range, but they are not. Because the red count is the denominator for both of these determinations, it must be too high and thus falsely decrease both the MCV and MCH.

Answer to Question 2

ANS: B
The ESR tube must be kept at the absolute perpendicular to obtain a valid ESR result. Even only a slight tilt of the pipette (tube) causes the ESR to increase.


jazziefee

  • Member
  • Posts: 505
Reply 2 on: Jun 25, 2018
Excellent

shewald78

  • Member
  • Posts: 340
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Common abbreviations that cause medication errors include U (unit), mg (milligram), QD (every day), SC (subcutaneous), TIW (three times per week), D/C (discharge or discontinue), HS (at bedtime or "hours of sleep"), cc (cubic centimeters), and AU (each ear).

Did you know?

In 1864, the first barbiturate (barbituric acid) was synthesized.

Did you know?

The eye muscles are the most active muscles in the whole body. The external muscles that move the eyes are the strongest muscles in the human body for the job they have to do. They are 100 times more powerful than they need to be.

Did you know?

According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.

Did you know?

Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.

The first dark spot observed on Uranus. Image obtained by the HST ACS in 2006. The first dark spot observed on Uranus. Image obtained by the HST ACS in 2006.
Patient with osteoarthritis Patient with osteoarthritis
Health care - patient-centered Health care - patient-centered
Results of the study by Laruelle et al. (1996) Results of the study by Laruelle et al. (1996)
Algorithm for assessing a patient at risk for self-directed violence. Algorithm for assessing a patient at risk for self-directed violence.
Video: Kidney Stones

For a complete list of videos, visit our video library