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What does a QRS Complex represent in an ECG reading?
- A. Atrial depolarization
- B. Ventricular repolarization
- C. Ventricular depolarization
- D. End of ventricular depolarization
Correct Answer: C
Rationale: The QRS Complex in an ECG reading represents ventricular depolarization, which is the process of the heart's ventricles preparing to contract by changing the electrical charge in the cell, hence choice 'C' is the correct answer. Choice 'A' is incorrect because atrial depolarization is represented by the P wave in an ECG reading, not the QRS Complex. Choice 'B' is incorrect as ventricular repolarization is depicted by the T wave, not the QRS Complex. Finally, choice 'D' is also incorrect because the QRS Complex is not the end of ventricular depolarization, but the process itself.
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What characterizes Obsessive Compulsive Disorder?
- A. Uncontrollable impulse to perform an act or ritual repeatedly
- B. Persistent thoughts and behavior
- C. Recurring unwanted and disturbing thoughts
- D. Pathological persistence of unwilled thoughts
Correct Answer: A
Rationale: Obsessive Compulsive Disorder (OCD) is characterized by the uncontrollable impulse to perform an act or ritual repeatedly (Choice A). This is driven by recurring unwanted and disturbing thoughts (Choice C), but the distinguishing factor is the compulsive behavior, making choice A the most accurate. While choice B can be seen as true, it lacks the specific detail of the compulsive behavior that makes A a better answer. Choice D is not incorrect, but it uses terminology that is less precise and less commonly used to describe OCD, making it a less accurate choice than A. The provided rationale is not relevant to the question.
During the phallic stage, with which parent must the child identify?
- A. The same-sex parent
- B. The opposite-sex parent
- C. The mother or the primary caregiver
- D. Both parents
Correct Answer: A
Rationale: According to Freud's psychosexual development theory, during the phallic stage (approximately ages 3 to 6), the child starts to identify with the parent of the same sex. This identification is a crucial part of the child's development and is believed to influence their adult behavior. The process involves the child adopting the characteristics, attitudes, and values of the same-sex parent. Choice B, C, and D are incorrect as they do not align with Freud's theory of the phallic stage of psychosexual development.
Generally, lifestyle-related diseases share common risk factors. Which of the following is NOT one of them?
- A. Physical activity
- B. Smoking
- C. Genetics
- D. Nutrition
Correct Answer: C
Rationale: Common risk factors for lifestyle-related diseases typically include aspects of one's lifestyle that can be modified or controlled, such as physical activity, smoking habits, and nutrition. These factors can be changed to prevent or manage lifestyle-related diseases. Genetics, on the other hand, is not a modifiable risk factor, meaning it cannot be changed or controlled. Therefore, it is not considered a common risk factor for lifestyle-related diseases. Understanding the modifiable risk factors for these diseases allows for better prevention and management strategies, and helps reduce the risk of complications.
Which type of bath would you recommend for a patient experiencing pruritus?
- A. Saline
- B. Colloidal (oatmeal)
- C. Water
- D. Sodium bicarbonate
Correct Answer: B
Rationale: The best choice for a pruritus (itching) patient is a colloidal (oatmeal) bath, as it is known for its soothing effect on itchy, irritated skin. Saline, water, and sodium bicarbonate baths may not provide the same level of relief for pruritus. The nursing care should involve comprehensive assessments and appropriate interventions to optimize patient outcomes. In this case, a colloidal bath is the most suitable intervention for a patient experiencing pruritus.
Which of the following actions would be of highest priority with regards to the external shunt?
- A. Avoid taking blood pressure or blood sample from the arm with the shunt
- B. Instruct the patient not to exercise the arm with the shunt
- C. Heparinize the shunt daily
- D. Change the dressing of the shunt daily
Correct Answer: C
Rationale: Heparinizing the shunt daily (choice C) is the highest priority action as it prevents the formation of blood clots that can occlude the shunt, leading to potential complications such as thrombosis. Avoiding taking blood pressure or blood samples from the arm with the shunt (choice A) is also important, but secondary to heparinizing the shunt. Similarly, instructing the patient not to exercise the arm with the shunt (choice B) can help prevent unnecessary strain on the shunt, but it is not as critical as preventing clot formation. Changing the dressing of the shunt daily (choice D) is a standard nursing care practice to prevent infection, but again, it is not as critical as ensuring the shunt remains patent through daily heparinization.