Absolute contraindications for conducting a cardiopulmonary exercise evaluation include which of the following?
1. Diastolic blood pressure greater than 110 mm Hg
2. Serious cardiac arrhythmias
3. Unstable angina
4. Recent myocardial infarction
a. 1 and 3 only
b. 1, 2, and 3 only
c. 3 and 4 only
d. 2, 3, and 4 only
ANS: D
To guide practitioners in implementing exercise evaluation, the AARC has published Clinical Practice Guidelines: Exercise Testing for Evaluation of Hypoxemia and/or Desaturation and Pulmonary Rehabilitation.
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Which of the following is true of mineral acids?
a. Are any substance that generates hydrogen ions, or H+, when dissolved in water b. Consist of molecules having atoms of hydrogen, an identifying nonmetal like chlorine, sulfur, or phosphorus, and sometimes oxygen c. Are substances that produces hydroxide ions, or OH-, when it is dissolved in water d. Are substances whose molecules possess carbon, hydrogen, and oxygen atoms only
________ is the proportion or number of individuals in a population having the disease
Fill in the blank(s) with correct word