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Which of the following imaging test that uses transducer will be likely be ordered by the physician to detect gallstones?
- A. Computed Tomography
- B. Abdominal Ultrasound
- C. Abdominal X-ray
- D. Doppler sonography
Correct Answer: B
Rationale: An abdominal ultrasound is the imaging test that uses a transducer and is most commonly ordered by physicians to detect gallstones. This non-invasive procedure allows the physician to visualize the gallbladder and detect any presence of gallstones. The transducer emits sound waves that bounce off the gallstones, creating images that can be seen on a screen. This imaging test is safe, reliable, and effective in diagnosing gallstones without the use of radiation or contrast dye.
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A patient receiving palliative care for end-stage chronic obstructive pulmonary disease (COPD) experiences chronic cough and excessive sputum production. What intervention should the palliative nurse prioritize to address the patient's symptoms?
- A. Administer bronchodilator medications to improve airway clearance.
- B. Encourage the patient to practice controlled coughing techniques.
- C. Prescribe mucolytic medications to thin respiratory secretions.
- D. Refer the patient to a respiratory therapist for breathing exercises.
Correct Answer: B
Rationale: Encouraging the patient to practice controlled coughing techniques would be the most appropriate intervention to address the symptoms of chronic cough and excessive sputum production in a patient with end-stage COPD receiving palliative care. Controlled coughing techniques can help the patient effectively clear respiratory secretions and improve airway clearance without the need for additional medications or interventions. This approach focuses on optimizing the patient's ability to manage their symptoms and maintain comfort, which aligns with the goals of palliative care. Administering bronchodilator medications, prescribing mucolytic medications, or referring the patient to a respiratory therapist for breathing exercises may have limited effectiveness in this advanced stage of the disease, and controlled coughing techniques would be a more practical and patient-centered approach to symptom management.
Which of the following structures is responsible for propelling food from the oral cavity to the stomach through coordinated muscular contractions?
- A. Tongue
- B. Pharynx
- C. Esophagus
- D. Epiglottis
Correct Answer: C
Rationale: The esophagus is responsible for propelling food from the oral cavity to the stomach through a series of coordinated muscular contractions. These contractions are known as peristalsis. The esophagus is a muscular tube connecting the throat (pharynx) to the stomach and plays a crucial role in moving food bolus from the mouth to the stomach for digestion. The tongue helps in the chewing and swallowing of food, the pharynx is involved in the passage of food and air, and the epiglottis helps prevent food from entering the airways during swallowing. However, it is the esophagus that actively moves the food to the stomach.
The lecturer reminded the committee members that bias is an influence that distorts study results. In quantitative research, which will eliminate bias?
- A. Trustworthiness
- B. Randomness
- C. Credibility
- D. Triangulation
Correct Answer: B
Rationale: In quantitative research, randomness plays a crucial role in eliminating bias. Random sampling ensures that every individual or element in the population has an equal chance of being selected for the study. This helps in reducing the possibility of bias creeping into the results due to selective sampling or favoritism towards certain groups. By using random sampling methods, researchers can increase the generalizability of their findings and have a higher level of confidence that the results are unbiased and representative of the entire population. Therefore, randomness is a key mechanism to eliminate bias in quantitative research studies.
A patient presents with chest pain that worsens with exertion and improves with rest. An electrocardiogram (ECG) shows ST-segment depression. Which cardiovascular disorder is most likely responsible for these symptoms?
- A. Stable angina
- B. Unstable angina
- C. Acute myocardial infarction
- D. Prinzmetal's angina
Correct Answer: A
Rationale: The patient is presenting with chest pain that worsens with exertion and improves with rest, which is characteristic of stable angina. Additionally, ST-segment depression on ECG is a common finding in patients with stable angina. Stable angina is typically caused by coronary artery disease, which leads to partial obstruction of the coronary arteries resulting in inadequate blood flow to the heart muscle during periods of increased demand (such as exertion). The chest pain is usually predictable and reproducible, occurring with similar intensity and duration during episodes of exertion. Rest or nitroglycerin can help relieve the symptoms by increasing coronary blood flow. It is important to differentiate stable angina from unstable angina and acute myocardial infarction, which have different management and prognostic implications.
A patient is having elective surgery under general anesthesia. Who is responsible for obtaining the informed-consent?
- A. Surgeon
- B. Nurse anesthetist
- C. Nurse
- D. Anesthesiologist
Correct Answer: A
Rationale: The primary responsibility for obtaining informed consent lies with the surgeon who will be performing the procedure. Informed consent is a process where the healthcare provider explains the procedure, benefits, risks, and alternatives to the patient, allowing them to make an informed decision about their care. While other healthcare team members may also participate in this process, the ultimate responsibility typically rests with the surgeon as they are the one performing the surgery.