Which of the following structures is responsible for the mechanical and chemical digestion of food, as well as the absorption of nutrients into the bloodstream?

Correct Answer: B

Rationale: The stomach is the organ responsible for the mechanical and chemical digestion of food. When food enters the stomach, it is mixed with stomach acid and enzymes to break down the food into smaller particles. This process helps prepare the food for further digestion and absorption of nutrients. The stomach also plays a key role in the absorption of some nutrients, such as certain vitamins and minerals. Additionally, the stomach's muscular contractions help mix the food with digestive enzymes and propel the partially digested food into the small intestine for further processing and absorption. The liver, pancreas, and large intestine have vital functions in the digestive system, but the stomach is the primary organ responsible for the initial digestion and absorption of nutrients.

Correct Answer: B

Rationale: In this scenario, the patient is presenting with acute exacerbation of chronic heart failure (CHF) complicated by pulmonary edema and respiratory distress. The priority intervention for managing this exacerbation is to initiate positive pressure ventilation for respiratory support. Positive pressure ventilation, such as non-invasive positive pressure ventilation (NIPPV) or invasive mechanical ventilation, can help improve oxygenation and decrease the work of breathing for the patient. By providing adequate respiratory support, ventilation can reduce the negative effects of pulmonary edema and respiratory distress due to CHF exacerbation. Administering intravenous loop diuretics (Choice A) might be necessary to address fluid overload, but it is not the initial priority as ensuring adequate ventilation is crucial. Emergent pericardiocentesis (Choice C) is not indicated in this scenario as there is no mention of cardiac tamponade. Inotropic medications (Choice D) may be considered in managing acute exacerbation of CHF but

Correct Answer: A

Rationale: Wiping the episiotomy area from front to back using a blotting motion helps prevent introducing bacteria from the rectal area to the vaginal area, reducing the risk of infection. This technique also avoids causing unnecessary trauma to the healing tissues. Ensuring proper hygiene is vital to prevent complications such as infection, which is crucial for the healing process after an episiotomy.

Correct Answer: A

Rationale: Before finalizing and implementing the education plan for the staff nurse, it is important to have the plan reviewed by the nurse supervisor. The nurse supervisor is directly responsible for overseeing the staff nurses and their education and training needs. They have a good understanding of the staff nurse's current skills, areas for improvement, and training requirements. By involving the nurse supervisor in the review process, you can ensure that the education plan is aligned with the overall goals and needs of the nursing staff and the department. Additionally, the nurse supervisor can provide valuable input and insights to help tailor the education plan to meet the specific needs of the staff nurses under their supervision.

Correct Answer: A

Rationale: Confidentiality is the ethical principle that requires healthcare providers to keep client information private and not disclose it without the client's consent. When client information is shared beyond the interdisciplinary team without the client's consent, it breaches the trust and privacy expected in the nurse-client relationship. This breach not only violates the ethical principle of confidentiality but also undermines the client's autonomy and right to control their own personal information. Maintaining confidentiality is crucial for building trust and ensuring the well-being of the client.

Correct Answer: D

Rationale: While all of the nursing measures listed are important considerations when managing a patient receiving oxytocin drip, the nurse would least consider informing the patient about potential complications. The reason for this is that it is the responsibility of the healthcare provider (such as the physician or advanced practice nurse) to inform the patient about potential complications of a medication or treatment. Nurses are instrumental in providing education and support to patients, but in the case of informing patients about potential complications, this task typically falls under the purview of the prescribing provider. The primary focus of the nurse in this situation would be to assess, administer, monitor, and educate the patient as appropriate, ensuring safe and effective care delivery.

Correct Answer: C

Rationale: The described clinical presentation of a yellowish-white spot on the cornea with a ring of inflammation, along with branching, filamentous opacities extending from the corneal lesion, is highly suggestive of fungal keratitis. Fungal keratitis is commonly caused by filamentous fungi such as Fusarium and Aspergillus species. The characteristic finding of branching, filamentous opacities seen on slit-lamp examination is classic for fungal infections of the cornea. It is important to promptly diagnose and treat fungal keratitis since delayed or inadequate management can result in vision-threatening complications.

Correct Answer: C

Rationale: When examining a child, especially one who may already be feeling scared or uncomfortable, it is important to prioritize the order of procedures to help maintain their cooperation and reduce their anxiety. Undressing the child is typically done first to ensure a thorough examination can be performed, and it is a less invasive procedure compared to others. Inspection of the throat with a throat stick and inspection of the ears with an otoscope are common procedures that may cause mild discomfort but are often tolerated well by children. Auscultation of the heart is usually done after these initial steps and is not typically as uncomfortable or frightening for children compared to other procedures. Therefore, auscultation of the heart should not be the last thing to do when examining a child to avoid frightening them.

Correct Answer: D

Rationale: The given clinical presentation of chest pain that worsens with swallowing and is relieved by leaning forward along with diffuse ST-segment elevation on an ECG is highly suggestive of pericarditis. Pericarditis is the inflammation of the pericardium, the thin sac surrounding the heart. The symptoms of pericarditis can mimic those of myocardial infarction (heart attack) but can also be differentiated by certain characteristics such as the described positional chest pain, which is worsened by swallowing and relieved by leaning forward.