Unit 1 Case Study Assignment

Topics: Oxygen, PH, Arterial blood gas, Carbon dioxide, Bicarbonate, Blood / Pages: 3 (627 words) / Published: Nov 30th, 2014
The Car Accident: A Case Study in Acid-Base Balance

Mr. Henderson, a 52-year-old male, was on his way to work during a heavy rainstorm when he lost control of his car and crossed into oncoming traffic where he collided head-on with a small delivery truck. Witnesses accessed the 911 emergency medical response system, and paramedics arrived quickly. The driver of the truck suffered only minor cuts and scrapes, but Mr. Henderson was having difficulty breathing and complaining of severe chest pain. Transport time to the nearest trauma center was less than two minutes, so the emergency personnel elected to “scoop and haul.” A large bruise on his chest indicated that Mr. Henderson had experienced blunt trauma from the impact of the steering wheel after the airbag failed to deploy.

Mr. Henderson presented in the ER with blurred vision, dizziness, headache, nausea, muscle weakness, hypoventilation, and a feeling of mental confusion. A chest X ray revealed bilateral fractures in the fourth, fifth, and six ribs along with a suspected hemothorax. An ECG revealed signs of ventricular arrhythmias. The values following values were taken from the results of an arterial blood gas (ABG) and urinalysis (UA).

Aterial Blood Gas (ABG) High or Low pH: 7.0 Low
Pco2: 62 High bicarbonate: 29 mEq/L High

Urinalysis (UA) pH: 4.0 Low

Short Answer Questions

Define the following terms contained in this case:

Bilateral - Pertains to the right and left sides of a structure; affecting both sides.

Hypoventilation - Breathing at a abnormally slow rate, resulting in decreased oxygen and increased levels of carbon dioxide in the blood.

Hemothorax - A collection of blood in the space between the chest wall and the lung.

Arrhythmias - A condition where the heart beats with a irregular or abnormal rhythm.

What are the normal ranges for the measurements listed in the blood and urine tests?
Normal range for blood test should be 7.35-7.45 pH.

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