Clinical Chemistry

This "Pathways" program provides Anatomic and Clinical Pathology cases that include a history, potential answers, rationale, and relevant references. Cases for November include the following sub-specialties: Gynecological Pathology, Cytopathology and Pulmonary Pathology, Hematopathology, Clinical Microbiology, Clinical Chemistry, and Biochemical Genetics.

By MCL Education • November 12, 2021

This "Pathways" program provides a Clinical Pathology case that includes a history, potential answers, rationale, and relevant references. This case sub-specialty is Clinical Chemistry.

By MCL Education • November 12, 2021

This "Pathways" program provides Anatomic and Clinical Pathology cases that include a history, potential answers, rationale, and relevant references. Cases for August include the following sub-specialties: Clinical Biochemistry, Clinical Chemistry, Clinical Informatics, Clinical Microbiology, and Gastroenterology Pathology.

By MCL Education • August 13, 2021

This "Pathways" program provides a Clinical Pathology case that includes a history, potential answers, rationale, and relevant references. This case sub-specialty is Clinical Chemistry.

By MCL Education • August 13, 2021

This "Pathways" program provides a Clinical Pathology case that includes a history, potential answers, rationale, and relevant references. This case sub-specialty is Clinical Chemistry.

By MCL Education • September 8, 2020

This "Pathways" program provides Anatomic and Clinical Pathology cases that include a history, potential answers, rationale, and relevant references. Cases for July include the following sub-specialties: Bone and Soft Tissue & Pulmonary, Clinical Chemistry, and Gastroenterology.

By MCL Education • July 14, 2020

This "Pathways" program provides Anatomic and Clinical Pathology case that includes a history, potential answers, rationale, and relevant references. This case sub-specialty is Clinical Chemistry.

By MCL Education • July 14, 2020

This "Pathways" program provides Anatomic Pathology case that includes a history, potential answers, rationale, and relevant references. This case sub-specialty is Clinical Chemistry.

By MCL Education • July 14, 2020

This "Pathways" program provides Anatomic and Clinical Pathology cases that include a history, potential answers, rationale, and relevant references. Cases for March include the following sub-specialties: Bone and Soft Tissue, Clinical Chemistry, Cytopathology, Gastroenterology, Neuropathology, Pulmonary & Surgical.

By MCL Education • March 10, 2020

A 37-year-old female diagnosed with attention-deficit hyperactive disorder (ADHD) presented for her annual Adderall (amphetamine and d-amphetamine) compliance testing visit and prescription refill.

The confirmatory amphetamine urine test results were as follows:

Drug

Result

Cut-off

Amphetamine

15,988 ng/mL

< 25 ng/mL

Methamphetamine

58 ng/mL

< 25 ng/mL

Phentermine

negative

< 25 ng/mL

MDA

negative

< 25 ng/mL

MDMA

negative

< 25 ng/mL

Pseudoephedrine/ephedrine

negative

< 25 ng/mL

This patient also had a history [...]

By MCL Education • March 10, 2020

An 88-year old-female presented with chronic lymphocytic leukemia under chemotherapy.

Vijayalakshmi Nandakumar, Ph.D., M.S. Fellow, Clinical Chemistry Mayo Clinic Brad Karon, M.D., Ph.D. Consultant, Clinical Core Laboratory Services Mayo Clinic Professor of Laboratory Medicine and Pathology Mayo Clinic College of Medicine
By MCL Education • July 9, 2019

Mayo Clinic laboratory experts share three case studies in this month’s “PathWays” post and are challenging you to test your anatomic and clinical pathology, laboratory genetics and genomics, and pathology and cytology knowledge. Review the cases, take the quizzes, and learn how the correct diagnoses were made.

By Michelle Odean • February 5, 2019

A 55-year-old female with history of eating disorder and high output ileostomy presented with electrolyte abnormalities, dehydration, chronic kidney failure, and severe QT prolongation. Initial serum lab evaluation revealed severe hypokalemia, hypochloremia, and hypermagnesemia. Stool studies revealed an osmotic cause of diarrhea with fecal osmotic gap of 204 mOsm/kg. Fecal [...]

By MCL Education • February 5, 2019