Lung cancer laboratory findings

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief:  Saarah T. Alkhairy M.D

## Overview[edit | edit source]

The laboratory findings associated with lung cancer are the following neutropenia, hyponatremia, hypokalemia, hypercalcemia, respiratory acidosis, hypercarbia, hypoxia, and tumor cells in sputum and pleural effusion cytology.

## Laboratory Findings[edit | edit source]

* CBC

* Neutropenia in patients with a recent history of chemotherapy

* Serum Electrolytes

* Hyponatremia from syndrome of Inappropriate Antidiuretic Hormone Secretion (SIADH)
* Hypokalemia from syndrome of Inappropriate Antidiuretic Hormone Secretion (SIADH)
* Hypercalcemia with normal PTH levels from squamous cell carcinoma (from secretion of parathyroid hormone-related peptide (PTH-rP)

* ABG

* Respiratory acidosis from respiratory failure
* Hypercarbia from respiratory failure
* Hypoxia from respiratory failure

* Sputum Cytology

* Sputum cytology demonstrates tumor cells

* Needle Thoracentesis

* Pleural effusion cytology demonstrates tumor cells

## References[edit | edit source]

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