Calculations
Articles by DW
Respiratory Therapist
RRT Exam Prep
A-a Gradient
The A-a gradient compares the pressure of oxygen in the alveoli (PAO2) to the pressure of oxygen in the arteries (PaO2). This pressure difference should range between 5 and 10 mm Hg in a healthy […]
Calculations
Respiratory Quotient
What is the respiratory quotient? The respiratory quotient (RQ) is the ratio of carbon dioxide produced to oxygen consumed. This is based primarily on the patient’s diet. A diet high in lipids has an RQ […]
Calculations
PaO2/FiO2 Ratio
The PaO2/FiO2 ratio, also known as the P/F ratio, is a quick calculation often used to determine the severity of ARDS. The P/F ratio is calculated by dividing the arterial oxygen pressure (PaO2) obtained from […]
Calculations
Alveolar air equation
The alveolar air equation calculates the partial pressure of oxygen within the alveoli (PAO2). The alveolar air equation is also referred to as the alveolar gas equation. PAO2 = [(Patm – Ph2O)fio2] – [PaCO2/0.8] Why […]
RRT Exam Prep
Do This One Thing To Pass The RRT Exam On The First Try!
“Before anything else, preparation is the key to success.” — Alexander Graham Bell There’s nothing better than feeling confident and relaxed on exam day! Knowing that years of late night study sessions and unpaid clinical […]
RRT Exam Prep
RRT Exam Practice Questions
Passing the NBRC RRT board exams on the first try is hard work! There, I said it. Despite the promises some exam review companies make, the reality is that passing on the first attempt is […]
RRT Exam Prep
5 Free RRT Exam Practice Questions
Cardiac questions abound on the new 2015 TMC-RRT and clinical simulation exams. Fortunately, you don’t have to be a cardiologist to pass! However, familiarizing yourself with cardiac signs, symptoms, ECG, hemodynamics and pathophysiology will contribute […]
RRT Exam Prep
5 Patient Assessment Skills To Crush The TMC-RRT Exam
5 Patient Assessment Skills You Need To Know To Crush The TMC-RRT Exam! by Respiratory Therapy Programs Physical exam involves observing, palpating, percussing, and auscultating the patient. All of these methods reveal clues to the […]
RRT Exam Prep
Respiratory Therapist Exam Review
I recently took the paid version of the respiratory therapist exam self assessment test. After sadly parting with the $50 test fee I spent the next 2 hours answering 140 practice questions. Something I noticed was […]