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Nursing Elites

ATI TEAS 7

Chemistry

1. Which of the following is an example of a salt?

Correct answer: c

Rationale: Sodium chloride is an example of a salt. The other choices are either bases or acids.

2. In a neutral atom, the number of electrons:

Correct answer: A

Rationale: Must be equal to the number of protons - For electrical neutrality, the positive charge of protons must be balanced by the negative charge of an equal number of electrons.

3. Which word completes the sentence "He was ____ by the unexpected turn of events."

Correct answer: B

Rationale: "Bewildered" best describes the confusion caused by the unexpected events.

4. What is the medical term for heartburn, a burning sensation in the chest caused by stomach acid?

Correct answer: B

Rationale: Rationale: A) Dysphagia refers to difficulty swallowing and is not specifically related to heartburn. B) Gastroesophageal reflux disease (GERD) is the medical term for heartburn, which is a burning sensation in the chest caused by stomach acid flowing back up into the esophagus. C) Peptic ulcer is a sore that develops on the lining of the stomach, small intestine, or esophagus, and it can cause symptoms such as abdominal pain, not specifically heartburn. D) Ulcerative colitis is a type of inflammatory bowel disease that affects the colon and rectum, and it does not typically cause heartburn.

5. Which of the following statements is NOT true about performance appraisal?

Correct answer: A

Rationale: Option A is the correct answer because informing staff about specific impressions of their work can be subjective and may not always lead to improvement. Performance appraisal should be based on objective criteria and feedback. Verbal appraisals can lack documentation and clarity, making a written report a more reliable form of evaluation. Patients may provide valuable input on staff interactions, but they may not have the full context to assess job performance comprehensively. The outcome of performance appraisal should involve both the staff and the appraiser, as it is a collaborative process to identify strengths and areas for development.

6. Autoimmune diseases occur when the immune system mistakenly attacks healthy body tissues. What is a potential cause of autoimmune diseases?

Correct answer: C

Rationale: The correct answer is C. Autoimmune diseases are triggered by a breakdown in immune cell self-tolerance mechanisms, where the immune system fails to recognize 'self' from 'non-self' cells, leading to attacks on healthy tissues. While deficiencies in essential vitamins and minerals or exposure to environmental toxins can impact immune function, the root cause of autoimmune diseases is primarily attributed to the breakdown in self-tolerance mechanisms. This breakdown can be influenced by genetic predisposition, environmental factors, and other triggers, leading to the development of autoimmune conditions.

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