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Dr. Ruben Mesa

Hematology
Scottsdale, AZ
31 years experience male

Locations

Mayo Clinic

Scottsdale, AZ

Address

13400 East Shea Boulevard, Scottsdale, AZ
Directions

Fax

4803014675

About

Specialties
Doctors may have more than one area of specialty interest. Board certification in a specialty area means the doctor has completed formal training and has practice experience in that specialty, and has passed the certification examination from the corresponding accredited medical specialty board.

Hematology

Medical Oncology

Languages spoken

English

Doctor Q&A

20 Answers
0 Agrees
The number of answers this doctor has agreed with.
A 21-year-old member asked:
Dr. Ruben Mesa
Hematology 31 years experience
Exjade: In general the oral iron chelator Exjade is the best tolerated and most effective iron chelator. Whether one needs this therapy is a discussion to be ... Read More
A 21-year-old member asked:
Dr. Ruben Mesa
Hematology 31 years experience
Adult decreased fact: A decrease in clotting factors as an adult can be an "acquired" hemophilia. These can arise when the body creates an immune response against clotting ... Read More
A 30-year-old member asked:
Dr. Ruben Mesa
Hematology 31 years experience
Not likely: Given most patients with hereditary spherocytosis (hs) have the disease lifelong would not likely cause a change in fatigue levels.
A 38-year-old member asked:
Dr. Ruben Mesa
Hematology 31 years experience
Could be either: Chances are greatest that an enlarged lymph node is not cancer (i.e. Lymphoma) - however needs to be assessed by a physician and sometimes a biopsy ne... Read More
A 41-year-old member asked:
Dr. Ruben Mesa
Hematology 31 years experience
Dpnds on Gender/lab: The normal range depends on the lab and gender. In our laboratory the lower limit of normal for a female would be 12.0 g/dl. The rbc is number of red ... Read More
A 36-year-old member asked:
Dr. Ruben Mesa
Hematology 31 years experience
Usually GI issues: Oral iron most commonly causes GI side effects - constipation etc. Dizziness would be possible, but less likely.
A 31-year-old member asked:
Dr. Ruben Mesa
Hematology 31 years experience
Yes: Folic acid should not be a problem if you have erythrocytosis or polycythemia. Whether extra Folic Acid is needed would depend on the recommendation f... Read More
A 43-year-old member asked:
Dr. Ruben Mesa
Hematology 31 years experience
Other way around: In general the white cells can destroy red blood cells through the immune system. The red cells do not have the capability of destroying the white cel... Read More
A 20-year-old member asked:
Dr. Ruben Mesa
Hematology 31 years experience
Hemophilia panels: There are very specific panels to measure the overall clotting of the blood, and the exact measurement of the clotting factors involved with coagulati... Read More
A 51-year-old member asked:
Dr. Ruben Mesa
Hematology 31 years experience
No formal limit: In general a donor less than 70 years of age is preferred, but this is not a hard limit. Depends on the availability of alternative donor options, the... Read More
A 46-year-old member asked:
Dr. Ruben Mesa
Hematology 31 years experience
Probably Not: That value is in the normal range. Still that value might be associated with B12 deficiency and studying the size of the red cells and other vitamin l... Read More
A 49-year-old member asked:
Dr. Ruben Mesa
Hematology 31 years experience
Very common, many ex: Bruising is common in women as they age due to thinning of the skin, decreased estrogen. Whether this is abnormal increased bruising depends on blood ... Read More
A 44-year-old member asked:
Dr. Ruben Mesa
Hematology 31 years experience
Brken RBC- Hemolysis: Hemolysis is a breakdown of red blood cells early than normal (usually happens to all red cells after 100 days). Causes can be from immune system, mec... Read More
A 40-year-old member asked:
Dr. Ruben Mesa
Hematology 31 years experience
Probably Not: The blood clotting system does not require oxygen to cause clotting, so in theory should not be a major difference between the water and air.
A 21-year-old member asked:
Dr. Ruben Mesa
Hematology 31 years experience
Stress: Sickled red blood cells can arise in individuals with hemoglobin s (those with sickle cell disease typically (of african or middle eastern descent usu... Read More
A 23-year-old male asked:
Dr. Ruben Mesa
Hematology 31 years experience
Usually < 2 weeks: If from a bacterial infection (i.e. Strep throat for neck lymph nodes), groin lymph nodes from leg skin infection, then < 2 weeks. If enlarged for ... Read More
A 37-year-old member asked:
Dr. Ruben Mesa
Hematology 31 years experience
Unlikely: No evidence that masturbation has an impact on blood counts.
A 38-year-old member asked:
Dr. Ruben Mesa
Hematology 31 years experience
Yes but mildly: Menstrual blood loss does lower the hemoglobin, but probably by values of less than 1-2 g/dl.
A 31-year-old member asked:
Dr. Ruben Mesa
Hematology 31 years experience
Values >11 x 10(9)/L: The normal white cell range is up to 10.5 x 10(9)/l for most individuals. Mildly increased valuies (i.e. Up to 25 x 10(9)/l) can be from infection, in... Read More
A 36-year-old member asked:
Dr. Ruben Mesa
Hematology 31 years experience
Likely a blood vesse: If only from one side a recurrent nosebleed may be from a specific blood vessel bleeding, as opposed to a blood clotting issue. Should have an exam an... Read More

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Testimonials
Recommendations and Thank you notes are endorsements given from patients or other doctors.

2
Recommendations
12
Thank you notes
HealthTap member
Mar 31, 2015
Dr. Mesa is an amazing doctor! #nationaldoctorsday2015 #virtualflower1
HealthTap member
Mar 31, 2015
Dr. Mesa is an amazing doctor! #nationaldoctorsday2015 #virtualflower1
HealthTap member
Thanks for your quick reply! First medication had no effect so they changed it going on 3 weeks
HealthTap member
Thank you, your answer was very helpful!

Education & Training

Medical/Graduate school

Mayo Clinic College of Medicine
Graduated 1995MD

Medical/Graduate school

Mayo Clinic College of Medicine
Graduated 1993MD

Medical/Graduate school

University of Illinois, Urbana-Champaign
Graduated 1991MD

Residency

Mayo Clinic Minnesota

Residency

Mayo Clinic Minnesota

Affiliations

American College of Physicians
American Board of Internal Medicine
American Medical Association
90,000 U.S. doctors in 147 specialties are here to answer your questions, provide medical advice, write prescriptions, and more.
Answer emailed
in 24 hours or less