Correct Answer: A

Rationale: When a chest tube becomes disconnected, the priority action is to immediately reattach it to the drainage system or submerge the end in a bottle of sterile water or saline solution to reestablish a water seal. This helps prevent air from entering the pleural space and causing complications. Calling the health care provider is important but not the first action in this emergency. Instructing the client to inhale and hold his breath should be avoided as it can introduce atmospheric air into the pleural space, leading to potential issues. Clamping the chest tube is generally contraindicated, especially in cases of residual air leak or pneumothorax, as it may result in a tension pneumothorax by preventing air from escaping.

Correct Answer: C

Rationale: When a client is in hepatic coma due to liver failure, the liver cannot metabolize amino acids completely, leading to elevated ammonia levels. Increased ammonia can cause brain-tissue irritation, worsening the coma. Therefore, monitoring serum ammonia levels is crucial in assessing the severity of hepatic coma. Choices A, B, and D are less relevant in the context of hepatic coma. Blood urea nitrogen primarily assesses kidney function, serum calcium levels are not directly related to hepatic coma, and serum creatinine is more indicative of kidney function rather than liver function in this scenario.

Correct Answer: C

Rationale: Quality documentation and reporting require information to be factual, accurate, complete, current, and organized. Choice C, 'The client's intake was 360 mL,' reflects the correct use of guidelines for documentation as it provides a specific and measurable observation. This note meets the criteria for quality documentation by being specific and quantifiable. Choices A, B, and D lack specificity and quantifiability. Choice A includes a subjective term 'well,' choice B uses 'seems' indicating uncertainty, and choice D uses a vague term 'large' without quantifying the amount.

Correct Answer: A

Rationale: Ethics committees primarily focus on addressing ethical dilemmas in healthcare. Issues like euthanasia, decisions regarding starting or stopping treatment, and the use of feeding tubes for nutritional support involve complex ethical considerations related to patient care and end-of-life decisions, which are commonly deliberated by ethics committees. However, nonpayment of bills is a financial matter and falls outside the typical scope of ethics committees' functions.

Correct Answer: A

Rationale: Tobacco use is a well-established predisposing factor for cancer of the tongue. Smoking or chewing tobacco can lead to the development of oral cancers, including those affecting the tongue. Obesity, sun exposure, and eating sweets are not directly linked to an increased risk of tongue cancer. Obesity may be associated with other types of cancer, sun exposure can lead to skin cancer, and eating sweets is not a known risk factor for tongue cancer. Therefore, the correct answer is tobacco use, as it has a strong association with the development of tongue cancer, making it a significant predisposing factor.