Explanation/Reference:
Explanation:
(A) A side effect of epinephrine is fatal ventricular fibrillation owing to its effects on cardiac stimulation. (B) Medications used to treat asthma are designed to decrease bronchospasm, not to increase expectorate of secretions. (C) Epinephrine decreased inspiratory difficulty by stimulating α-, β1, and β2-receptors causing sympathomimetic stimulation (e.g., bronchodilation). (D) The person with asthma fights to inspire sufficient air thus increasing respiratory rate.

(A)
The manic client's mood may easily change from euphoric to irritable. The nurse should avoid confrontation and let the client know what she can do, rather than what she cannot.
(B)
Although helpful to refocus or redirect the manic client to discuss only one topic at a time, distractibility is very high and it's best to avoid long discussions. (C) Manic clients have a tendency to manipulate persons in their environment. Staff should monitor intake, including at mealtime and snacks, and be consistent in their approach to meeting nutritional needs. (D) Manic clients may not sit and eat complete meals, but they can carry foods and liquids from regular meals with them. Staff can monitor and give high-caloric and high-energy snacks and liquids.

Explanation
(A) Reaction formation is the development and demonstration of attitudes and/or behaviors opposite to what an individual actually feels. The client's comment does reveal her anger and hostility. (B) Rationalization, another ego defense mechanism, is offering a socially acceptable or seemingly logical explanation to justify one's feelings, behaviors, or motives. The client's comment does not reflect rationalization. (C) Splitting, the viewing of people or situations as either all good or all bad, is frequently used by persons experiencing a disruption in self-concept. This ego defense mechanism is reflective of the individual's inability to integrate the positive and negative aspects of self. (D) Sublimation, the channeling of socially unacceptable impulses and behaviors into more acceptable patterns of behavior, is another ego defense mechanism. The client's comment reveals that she is not engaging in sublimation.

Explanation/Reference:
Explanation:
(A) Appropriate endotracheal tube sizes for adults range from 7.0-8.5 mm. (B) Pneumothorax could be indicated by an absence of breath sounds on the affected side. However, in a recently intubated client, the first priority would be to consider tube malposition. (C) During intubation, the right mainstem bronchus can be inadvertently entered if the endotracheal tube is inserted too far. Left mainstem bronchus intubation almost never occurs because of the angle of the left mainstem bronchus. (D) Breath sounds for someone with pneumonia may be decreased over the areas of consolidation. However, in a recently intubated client, the first priority would be to consider tube malposition.

Explanation/Reference:
Explanation:
(A) The purpose of the study is not to provide a baseline for further tests. (B) The test causes an increase in O2 demand beyond that required to perform usual daily activities. (C) Monitoring does occur, but the test is not for the purpose of cardiac toning and conditioning. (D) Exercise ECG, or stress testing, is designed to elevate the peripheral and myocardial needs for O2 to evaluate the ability of the myocardium and coronary arteries to meet the additional demands.