Nokea
A patient presents with chest pain, dyspnea, and signs of hypotension. An electrocardiogram (ECG) shows ST- segment elevation in the inferior leads. Which cardiovascular disorder is most likely responsible for these symptoms?
- A. Stable angina
- B. Unstable angina
- C. Acute myocardial infarction
- D. Aortic dissection
Correct Answer: C
Rationale: Chest pain, dyspnea, hypotension, and ST-segment elevation on an ECG in the inferior leads are classic signs of an acute myocardial infarction (MI). An acute MI occurs when there is a sudden blockage of blood flow to a part of the heart muscle, leading to tissue damage. This causes symptoms such as chest pain due to ischemia, dyspnea due to heart failure, and hypotension due to poor cardiac output. The ST-segment elevation seen on the ECG is indicative of significant myocardial injury. Prompt diagnosis and management are crucial in acute MI to prevent further complications and to minimize damage to the heart muscle. It is important to differentiate an acute MI from stable or unstable angina or other cardiovascular disorders, as the management and prognosis vary significantly.
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Which of the following structures is responsible for secreting bile, which aids in the emulsification and digestion of fats?
- A. Liver
- B. Gallbladder
- C. Pancreas
- D. Spleen
Correct Answer: A
Rationale: The liver is responsible for secreting bile, which aids in the emulsification and digestion of fats. Bile is produced by the liver and is stored and concentrated in the gallbladder before being released into the small intestine to help with the breakdown of fats during the digestion process. The gallbladder functions as a storage organ for bile produced by the liver. The pancreas secretes digestive enzymes and bicarbonate to aid in the digestion process, while the spleen is mainly involved in immune function and blood storage.
What is the basic human right that exists when the subject's identity cannot be linked, even by the researcher, with his or her individual responses?
- A. Right to self-determination
- B. Right to fair treatment
- C. Right to anonymity
- D. Right to confidentiality
Correct Answer: C
Rationale: The right to anonymity is the basic human right that exists when the subject's identity cannot be linked, even by the researcher, with his or her individual responses. Anonymity ensures that individuals can freely express their thoughts, opinions, and experiences without fear of being identified or facing any consequences. It is crucial in research to protect the privacy and confidentiality of participants, build trust, and encourage honest responses. Anonymity is a fundamental ethical principle in research to safeguard the rights and well-being of participants.
A patient presents with a sensation of a foreign body stuck in the throat, difficulty swallowing, and odynophagia. Flexible laryngoscopy reveals a submucosal mass arising from the posterior pharyngeal wall. Which of the following conditions is most likely responsible for this presentation?
- A. Zenker's diverticulum
- B. Laryngopharyngeal reflux (LPR)
- C. Hypopharyngeal carcinoma
- D. Tonsillar hypertrophy
Correct Answer: A
Rationale: Zenker's diverticulum is a condition in which there is a pouch or sac that forms at the posterior pharyngeal wall above the upper esophageal sphincter. It can present with symptoms such as sensation of a foreign body stuck in the throat, difficulty swallowing (dysphagia), and odynophagia (painful swallowing). Flexible laryngoscopy can reveal a submucosal mass arising from the posterior pharyngeal wall, which is characteristic of Zenker's diverticulum.
A postpartum client who is breastfeeding expresses concerns about breast engorgement and discomfort. What nursing intervention should be prioritized to alleviate symptoms?
- A. Encouraging frequent breastfeeding or pumping sessions
- B. Applying cold packs to the breasts between feedings
- C. Recommending the use of a supportive bra or breast binder
- D. Administering oral analgesics for pain relief
Correct Answer: A
Rationale: The most appropriate nursing intervention to alleviate breast engorgement and discomfort in a breastfeeding client is to encourage frequent breastfeeding or pumping sessions. Engorgement occurs when the breasts become overly full of milk, causing them to become swollen, firm, and painful. By ensuring that the baby breastfeeds frequently, the client can effectively empty the breasts, which helps to relieve engorgement and discomfort. Encouraging the client to breastfeed on demand and ensuring proper latching can help prevent further engorgement issues. Pumping can also be useful if the baby is unable to feed directly from the breast or to relieve engorgement between feedings. This intervention addresses the root cause of the problem and promotes the client's comfort and breastfeeding success. Applying cold packs, using a supportive bra or breast binder, and administering oral analgesics may provide some relief for discomfort but do not address the underlying issue of engorgement.
A patient presents with episodic throbbing headache associated with nausea, vomiting, and sensitivity to light and sound. Symptoms are often preceded by an aura. Which of the following neurological conditions is most likely responsible for these symptoms?
- A. Migraine headache
- B. Cluster headache
- C. Tension-type headache
- D. Chronic daily headache
Correct Answer: A
Rationale: The patient's presentation of episodic throbbing headache associated with nausea, vomiting, sensitivity to light and sound, and aura suggests a diagnosis of migraine headache. Migraines are a common neurological condition characterized by recurrent moderate to severe headaches that are often unilateral, pulsating, and aggravated by physical activity. The presence of premonitory symptoms (aura) before the headache is a key feature commonly seen in migraines. Additionally, nausea, vomiting, and sensitivity to light and sound are also common features associated with migraines.