Correct Answer: B

Rationale: The correct answer is B: 'Burning with urination.' Burning with urination can indicate a urinary tract infection postpartum, which requires immediate attention to prevent complications. Bright red bleeding and heavy lochia flow are expected findings in the early postpartum period as the uterus continues to contract and expel lochia. A headache alone is not uncommon postpartum and is often attributed to hormonal changes, dehydration, or fatigue, and can be managed with adequate rest, hydration, and pain relief. Therefore, the priority here is to address the potential infection indicated by burning with urination.

Correct Answer: C

Rationale: The correct solution to maintain fluid and electrolyte balance during NG tube irrigation is 0.9% sodium chloride. This solution is isotonic and helps prevent electrolyte imbalances. Using tap water or sterile water can lead to electrolyte disturbances due to their hypotonic nature, while 0.45% sodium chloride is hypotonic and may cause further imbalances in the client's electrolyte levels.

Correct Answer: A

Rationale: Correct Answer: A. When assessing a patient with a potential myocardial infarction, it is crucial to assess symptoms, monitor vital signs like blood pressure and heart rate, and order an electrocardiogram (ECG) to evaluate for cardiac abnormalities. Choice B is incorrect because administering medications should be based on the findings of the assessment and diagnostic tests, not administered indiscriminately. Choice C is incorrect because the administration of thrombolytics and oxygen therapy should be based on specific criteria and should be done in a controlled setting. Choice D is incorrect as educating the patient on lifestyle changes is important for prevention but is not the immediate priority when managing a potential myocardial infarction.

Correct Answer: B

Rationale: Acetylcysteine is the antidote for acetaminophen overdose. It works by replenishing glutathione, a key component in detoxifying acetaminophen metabolites, thus preventing liver damage. Naloxone is used to reverse opioid overdose, not acetaminophen. Flumazenil is a benzodiazepine antidote. Activated charcoal is used to limit absorption in cases of poisoning, but it is not the antidote for acetaminophen overdose.

Correct Answer: A

Rationale: Corrected Rationale: Dehydration in the elderly is often signaled by dry mouth, confusion, and decreased skin turgor due to reduced fluid intake. Choice A is the correct answer as these are common signs and symptoms of dehydration in the elderly.\nIncorrect Rationales: Option B (Increased heart rate and muscle cramps) are more associated with conditions like hyperthyroidism or electrolyte imbalances rather than dehydration. Option C (Fever, rapid breathing, and increased urine output) are signs of other medical conditions such as infections or diabetes insipidus. Option D (Increased thirst and difficulty walking) can be seen in various situations but are not specific signs of dehydration in the elderly.