Section 7.1 Laboratory

Laboratory Report #8

Date

Collection Date: August 5, 2020
Report Date: August 8, 2020

Laboratory

Labcorp

Ordering Physician

Dr. Billy R. Boring, Jr.

Report Type

Comprehensive Annual Health Evaluation

Laboratory testing included:

Complete Blood Count (CBC) with Differential
Comprehensive Metabolic Panel
Lipid Panel
Hemoglobin A1c
Free T4
TSH
Prostate-Specific Antigen (PSA)
B-Type Natriuretic Peptide (BNP)
SARS-CoV-2 IgM Antibody
SARS-CoV-2 IgG Antibody
Routine Urinalysis

Original Report

PDF: Labcorp – August 5, 2020

One-Page Summary

Purpose of Testing

This annual laboratory evaluation documents overall health at age 83 and represents the final comprehensive examination immediately preceding the systemic inflammatory illness that developed in early 2021. Most laboratory systems remained stable, including kidney, liver, glucose, thyroid, and blood counts. However, this report contains one significant new finding—a markedly elevated B-Type Natriuretic Peptide (BNP)—which became an important marker in your subsequent cardiovascular history.

Major Findings

Metabolic Health

Results

Glucose: 80 mg/dL
Hemoglobin A1c: 5.4%

Interpretation

Glucose metabolism remained excellent. Both fasting glucose and Hemoglobin A1c were comfortably within the normal range, demonstrating continued healthy long-term glucose regulation.

Kidney Function

Results

BUN: 16 mg/dL
Creatinine: 1.04 mg/dL
eGFR: 66 mL/min/1.73 m²

Interpretation

Kidney function remained stable and appropriate for age. No laboratory evidence suggested progressive kidney disease.

Liver Function

Results

AST: 32 IU/L
ALT: 26 IU/L
Alkaline Phosphatase: 65 IU/L
Bilirubin: 0.3 mg/dL

Interpretation

Liver function tests remained within normal reference ranges. Although AST and ALT were slightly higher than in 2019, they remained normal and did not indicate liver disease.

Complete Blood Count

Results

WBC: 6.7 ×10³/µL
Hemoglobin: 13.1 g/dL
Hematocrit: 39.0%
Platelets: 228 ×10³/µL

Interpretation

Blood counts improved compared with the previous year. Hemoglobin returned to the normal reference range after several years of being mildly low. White blood cell and platelet counts remained normal, completing eight consecutive years of generally stable hematologic findings before the inflammatory illness of 2021.

Lipid Profile

Results

Total Cholesterol: 168 mg/dL
LDL Cholesterol: 89 mg/dL
HDL Cholesterol: 63 mg/dL
Triglycerides: 80 mg/dL

Interpretation

The lipid profile improved significantly compared with the previous year.

Highlights included:

LDL cholesterol returned to the normal range.
Total cholesterol decreased substantially.
HDL cholesterol remained favorable.
Triglycerides remained well within the normal range.

Overall, this represented one of the strongest lipid profiles in the pre-2021 laboratory history.

Thyroid Function

Results

TSH: 1.950 μIU/mL
Free T4: 1.16 ng/dL

Interpretation

Thyroid function remained stable and well controlled, with both TSH and Free T4 within normal reference ranges.

Prostate Screening

Result

PSA: 3.8 ng/mL

Interpretation

PSA returned to within the laboratory reference range after the mild elevation documented in 2019. This represented an encouraging improvement, although continued routine monitoring remained appropriate.

Cardiac Marker

B-Type Natriuretic Peptide (BNP)

Result

612.9 pg/mL (Markedly elevated)

Interpretation

This is the most significant laboratory finding in the 2020 report. BNP is a marker of cardiac wall stress and heart failure. A value of 612.9 pg/mL is substantially above the laboratory reference range and represents a major departure from previous BNP measurements. This result warranted prompt cardiovascular evaluation and became an important milestone in your cardiac history. It should be interpreted in conjunction with symptoms, imaging studies, and subsequent cardiology evaluations rather than in isolation.

SARS-CoV-2 Antibody Testing

Results

SARS-CoV-2 IgM: Negative
SARS-CoV-2 IgG: Negative

Interpretation

No detectable antibodies to SARS-CoV-2 were present at the time of testing, indicating no serologic evidence of prior COVID-19 infection. The laboratory appropriately notes that negative antibody results do not completely exclude infection.

Urinalysis

Routine urinalysis was normal.

Findings included:

No protein
No glucose
No blood
No infection

Urine pH measured 7.5, at the upper limit of the reference range, without accompanying abnormalities.

Overall Interpretation

This report documents excellent overall health in most laboratory systems at age 83. Kidney function, liver function, thyroid function, glucose metabolism, blood counts, urinalysis, and lipid profile all remained stable or improved. The only major exception was the markedly elevated BNP, which represented a significant new cardiovascular finding and foreshadowed the cardiac issues that became an important part of your subsequent medical history. This report therefore serves as both the conclusion of your long period of laboratory stability and the beginning of a new phase in your health journey.

Longitudinal Significance

This report contributed to long-term trend analysis of:

Blood counts
Kidney function
Liver function
Lipid profile
Glucose metabolism
Thyroid function
PSA
BNP
SARS-CoV-2 antibody testing
Urinalysis

It marks the final comprehensive laboratory evaluation before the inflammatory illness of 2021 while documenting the first major cardiovascular laboratory abnormality.

Clinical Importance

⭐⭐⭐ Major Transition Point

This report bridges two distinct periods in your health history. It concludes years of stable laboratory findings while introducing a markedly elevated BNP that signaled an important change in cardiovascular status before the inflammatory illness began.

Key Changes Since Previous Report

Hemoglobin improved from 12.8 to 13.1 g/dL, returning to the normal range.
Total cholesterol decreased from 208 to 168 mg/dL.
LDL cholesterol decreased from 126 to 89 mg/dL, returning to the normal range.
PSA decreased from 4.4 to 3.8 ng/mL, returning within the reference range.
Kidney, liver, thyroid function, and glucose regulation remained stable.
BNP increased dramatically to 612.9 pg/mL, becoming the most clinically significant new finding in the report.
SARS-CoV-2 antibody testing was negative for both IgM and IgG.

Related Reports

Blood Trend Tables
Kidney Function Trend Tables
Liver Function Trend Tables
Lipid Trend Tables
Glucose Trend Tables
Thyroid Trend Tables
Prostate Health Trend Tables
Cardiovascular Trend Tables
Medical History Timeline

Navigation

Previous Report: August 2, 2019 – Labcorp Comprehensive Annual Health Evaluation
Next Report: February 4, 2021 – Early Systemic Inflammatory Illness Laboratory Evaluation
Return to Laboratory Library
Return to Health Inventory

Observation

This report represents one of the most important transition points in your Laboratory Library. Looking only at the routine chemistry, blood counts, lipids, glucose, thyroid function, and urinalysis, your health still appeared remarkably stable. However, the BNP of 612.9 pg/mL stands out as a clear warning signal that cardiovascular stress was present even before the systemic inflammatory illness emerged in 2021. In hindsight, this report closes the chapter of long-term laboratory stability and begins the period in which your Health Inventory documents significant cardiovascular and inflammatory changes.