an examiner is using an ophthalmoscope to examine a patients eyes the patient has astigmatism and is nearsighted which of these techniques by the exam
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1. An examiner is using an ophthalmoscope to examine a patient's eyes. The patient has astigmatism and is nearsighted. Which of these techniques by the examiner would indicate that the examination is being correctly performed?

Correct answer: A

Rationale: To correctly perform an eye examination using an ophthalmoscope on a patient with astigmatism and nearsightedness, the examiner should rotate the lens selector dial to bring the object into focus. This adjustment helps compensate for nearsightedness or farsightedness but does not correct astigmatism. Rotating the lens selector dial to the black numbers is not an appropriate technique for compensating for astigmatism. Using the grid on the lens aperture dial is primarily for visualizing external structures of the eye, not for addressing refractive errors. The large full circle of light is typically used when assessing dilated pupils, not for examining patients with astigmatism and nearsightedness. Therefore, the correct technique is rotating the lens selector dial to bring the object into focus.

2. When performing an EKG, the patient starts to laugh out of feelings of anxiety. What would you expect the EKG to show? (Choose the BEST answer.)

Correct answer: C

Rationale: When a patient laughs due to anxiety during an EKG, it is likely to cause tachycardia, which is a rapid heart rate. This increased heart rate can lead to poor EKG graph quality as the electrical signals from large moving muscles can interfere with data collection from the chest leads. Therefore, in this scenario, the EKG is expected to show tachycardia with poor graph quality. Choices A, B, and D are incorrect because a patient laughing out of anxiety is more likely to result in an increased pulse rate (tachycardia) rather than a decreased pulse rate (bradycardia) or a normal EKG.

3. The categories such as ethnicity, gender, and religion illustrate which concept?

Correct answer: D

Rationale: Within cultures, various groups of people share different beliefs, values, and attitudes due to factors such as ethnicity, religion, education, occupation, age, and gender. When these distinct groups coexist within a broader culture, they are referred to as subcultures. While ethnicity, gender, and religion are important components of individuals' identities, they do not represent the concepts of family, cultures, or spirituality. The correct answer is 'Subcultures' as these categories reflect differences within a larger cultural context, emphasizing the unique characteristics shared by members of subcultural groups.

4. Which of the following is NOT an acceptable abbreviation?

Correct answer: A

Rationale: The correct answer is A: D/C. D/C is not an acceptable abbreviation as it can be easily confused with both 'discharge' and 'discontinue.' The abbreviations 'tid' (three times a day), 'bid' (twice a day), and 'qid' (four times a day) are commonly used in medical contexts to indicate dosing frequencies and are widely accepted in healthcare settings.

5. When percussing over the abdomen of an obese patient, the nurse is unable to identify any changes in sound. What would the nurse do next?

Correct answer: C

Rationale: When percussing an obese patient's abdomen, the thickness of their body wall can affect the sound produced. A stronger percussion stroke is needed for obese or very muscular patients. The force of the blow determines the loudness of the note. Asking the patient to take deep breaths, considering the finding as normal, or decreasing the strength used are not appropriate actions in this scenario.

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