If a patient is receiving an Flo2 of 0.60 on a day when the barometric pressure is 725 mm Hg, and if the PAco2 is 50 mm Hg, what is the patient's alveolar oxygen tension (PAo2)? A. 177 mm Hg C. 344 mm Hg B. 233 mm Hg D. 415 mm Hg

Q: Define respiratory exchange ratio.

A: Respiration, is a process through which gaseous exchange occurs between the alveoli and the atmosphe...

Q: describe how the normal pleural pressure differences cause regional difference in normal lung ventil...

A: Step 1: Normal lung ventilation or breathing is the movement of air into and out of the lungs. The m...

Q: at rest the normal pleural pressure change during quiet breathing is about

A: Pleural pressure is the pressure inside the pleural space surrounding the lung. It is generally nega...

Q: The inferior portion of the larynx is composed of the

A: The larynx is anteriorly located in the neck, below to the pharynx, and above to the trachea. The la...

Q: If Taylor weighs 135 lbs. and is exercising at 8 METs, a. What is her exercise VO2 in relative terms...

A: Introduction: MET(s) are abbreviated for metabolic equivalents and it is defined as the amount of en...

Q: If a patient normally has a 12 g/dL Hb, cyanosis will likely appear when A. 10 g/dL Hb is saturated ...

A: Cyanosis is a bluish discoloration of the skin caused in hypoxemic conditions in the red blood cells...

Q: Explain how Dalton's law relates to the partial pressure of atmospheric gases.

A: According to Dalton's law of partial pressures, the total pressure (Ptotal) exerted by the mixture o...

Q: Describe the structure and function of the accessory muscles of expiration and inspiration.

A: The process of inspiration (breathing in) and expiration(breathing out) are required for providing o...

Q: Identify the effects of sympathetic nervous systems have on the following heart,bronchial smooth mus...

A: The Autonomic nervous system of the brain is divided into two further sub-systems, sympathetic nervo...

Q: Identify the components of the mediastinum.

A: The mediastinum is a visceral organ of the thorax. It is present in the central part of the human th...

Q: Identify the structures and functions of the upper airways and pharynx.

A: The main work of the conducting airways is to serve fresh and moisten air. Conducting airways consis...

Q: The patient's condition was compromised by the presence of a decreased pH (7.25) and an increased (P...

A: The oxyhemoglobin dissociation curve will shift to the right.

Q: The average P(o2) in the umbilical vein during fetal life is about A. 20 mm Hg B. 30 mm Hg C. 40 mm ...

A: An organ that plays a role in the gas exchange in the mother’s womb is the placenta. Blood flows fro...

Q: Describe how the patient's ability to maintain spontaneous, unassisted ventilation is evaluated.

A: The spontaneous breathing is driven by the physiological mechanism by emphasizing the implementation...

Q: Describe the diffusion capacity of carbon monoxide study.

A: The diffusion capacity of the lung, abbreviated as DL, is the ability of respiratory membranes (RM) ...

Q: The difference between the alveolar pressure and the pleural pressure is called the  A transpulmonar...

A: Breathing is a physical process in which organism obtains oxygen from air and releases carbon dioxid...

Q: Contrast antagonistic control and tonic control of smooth muscles. Why are different receptor types ...

A: Homeostatic mechanism controls the pressure by which the blood is pumped around the body. Body tempe...

Q: How many feet below sea level must an individual descend to exert a total pressure on the body of 3 ...

A: The atmospheric pressure is also known as barometric pressure; it refers to a pressure present withi...

Q: Describe how blood flows through the heart.

A: The human heart is responsible for pumping and transportation of blood throughout the body via the c...

Q: Describe Dalton's law.

A: The gas laws were discovered at the end of the 18th century after scientists realize the relationshi...

Q: Describe the effort-dependent and effort-independent portions of a forced expiratory maneuver

A: The difference between a maximal or forced respiration effort and normal breathing is an important c...

Q: Identify the structures and the three primary functions of the nose.

A: The human nose represents one of the principal organs of the olfactory system in human. The nose bea...

Q: As the preload decreases, the cardiac output

A: Cardiac output (CO) is the volume of blood pumped per minute by each ventricle. In a normal conditio...