Type II Diabetes Case Study: Neuropathy and Tingling
This case study examines a 47-year-old African American male with a two-year history of type II diabetes who presents with increased tingling in his lower extremities. The paper reviews his personal, medical, and family history to identify contributing factors such as hypertension, dyslipidemia, obesity, and medication non-adherence. It discusses the likelihood of peripheral neuropathy or kidney disease as underlying causes, outlines appropriate physical exams and diagnostic tests, and recommends treatment options including anti-seizure medications and lifestyle modifications. The case underscores the importance of comprehensive history-taking and targeted diagnostics in managing diabetic complications effectively.
- Background and Presenting Complaint: Patient profile, medications, and tingling symptom overview
- Personal, Medical, and Family History: Gaps in lifestyle, prior tests, and genetic risk
- Physical Exams and Diagnostics: Neurological and renal tests to confirm diagnosis
- Treatment Options and Patient Education: Medications and lifestyle changes for neuropathy or kidney disease
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What makes this paper effective
- The paper follows a logical clinical structure — background, history, diagnostics, treatment — that mirrors real-world patient assessment workflows, making it easy to follow and credible.
- It draws reasonable differential diagnoses (peripheral neuropathy vs. kidney disease) and supports each with cited evidence, demonstrating critical thinking rather than assumption.
- The discussion of social determinants of health (subsidized housing, food stamps, diet quality) adds contextual depth often missing from purely biomedical analyses.
Key academic technique demonstrated
The paper uses differential diagnosis reasoning — systematically considering multiple possible causes for the presenting symptom (tingling) before moving to diagnostics. This technique is well-executed: the author identifies medication non-adherence, chronic hyperglycemia, peripheral neuropathy, and kidney disease as competing explanations, then recommends tests that would distinguish among them.
Structure breakdown
The paper is organized into four sections: (1) a clinical background establishing the patient profile and presenting complaint, (2) a history section identifying gaps in personal, medical, and family information needed for diagnosis, (3) a diagnostics section listing specific tests and their rationale, and (4) a treatment section covering pharmacological options and lifestyle recommendations. Each section builds directly on the previous one, guiding the reader from symptom to clinical decision.
Background and Presenting Complaint
The patient is a 47-year-old African American male who was diagnosed two years ago with type II diabetes. During a follow-up visit, he complained of increased tingling in his lower extremities. His medical history includes abnormal cholesterol levels (dyslipidemia), hypertension (HTN), obesity, and a former smoking habit (stopped two years ago). He reports no history of alcohol use. He lives alone in subsidized housing and relies on food stamps and welfare, occasionally working for supplemental income.
The tingling in his lower extremities may be related to his having stopped taking his medications for nearly a week. He is currently prescribed Lisinopril 20 mg, Januvia 50 mg once daily, and Lipitor 40 mg once daily, and his blood pressure at the visit was 160/100. Lipitor is a well-known cholesterol-lowering drug, Lisinopril is prescribed to treat high blood pressure, and Januvia helps lower blood sugar and thereby provides relief for type II diabetes. The elevated blood pressure already observed without these medications suggests that his blood sugar and cholesterol levels should also be tested to determine whether they have risen. The primary clinical concerns are the elevated blood pressure and the potentially elevated blood sugar resulting from abruptly stopping his medications.
Although chronically high blood sugar can cause tingling in the lower extremities over time, the symptom may also indicate that something else is contributing — or that Januvia is no longer adequately controlling his blood sugar. Lifestyle choices may have reduced the drug's effectiveness. Peripheral neuropathy refers to conditions resulting from damage to the nerves that carry signals from the brain and spinal cord to the rest of the body. The lower extremities — particularly the feet and hands — experience weakness, numbness, and tingling that can worsen progressively. This is a common complication of type II diabetes (Vallat & Weiss, 2014).
Personal, Medical, and Family History
Some personal history has been provided, but not enough to fully understand the patient's daily lifestyle choices. For example, if the patient follows a high-sugar diet and gets little exercise, a medication like Januvia will be less effective at reducing blood sugar. Additionally, the patient has not described his stress levels when he works occasionally, nor what foods he purchases on a weekly or monthly basis. This information could clarify what his primary diet looks like and how long he has maintained it. If poor diet is contributing to his obesity and type II diabetes, identifying where dietary mistakes are being made will be essential to correcting them and reducing both elevated blood sugar and potential neuropathy.
Medical history must also be reviewed, particularly previous blood test results. Reviewing prior labs would reveal whether there have been ongoing abnormalities in blood pressure or blood sugar despite medication use. If his blood pressure has remained elevated even while taking Lisinopril, a change in medication or dosage adjustment may be warranted. Comprehensive medical records will provide a clearer picture of his overall condition and support an accurate diagnosis.
Family history is also a critical factor. If his relatives have a history of high blood pressure, obesity, or type II diabetes, the patient may be genetically predisposed to these conditions — particularly kidney disease or kidney failure, which can also cause tingling in the feet (Lerma & Batuman, 2014). If one or both parents had kidney disease, this would help guide the diagnostic direction.
References
Buttaro, T. M. (2013). Primary Care: A Collaborative Practice. St. Louis, MO: Elsevier Health Sciences.
Lerma, E. V., & Batuman, V. (2014). Diabetes and Kidney Disease. Basingstoke, England: Springer.
Vallat, J., & Weiss, J. (2014). Peripheral Nerve Disorders: Pathology and Genetics. Hoboken, NJ: John Wiley & Sons.
Wiesman, J. F. (2016). Peripheral Neuropathy: What It Is and What You Can Do to Feel Better. Baltimore, MD: JHU Press.
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