Correct Answer: B

Rationale: The correct answer is B: Ineffective airway clearance related to obstruction by a tumor or secretions. This takes highest priority as compromised airway can lead to respiratory distress and potential respiratory failure. Maintaining clear airways is essential for oxygenation and ventilation. Choices A, C, and D are important but do not pose immediate life-threatening risks compared to compromised airway. Disturbed body image, anxiety, and imbalanced nutrition can be addressed once the airway clearance is stabilized.

Correct Answer: C

Rationale: The correct answer is C: 15 to 20 g of a fast-acting carbohydrate such as orange juice. In this scenario, the client is experiencing hypoglycemia, which can lead to confusion and abnormal behavior. Administering fast-acting carbohydrates like orange juice will help quickly raise the blood sugar levels. This is the first-line treatment for conscious patients with hypoglycemia. Choice A (I.M. or subcutaneous glucagon) is used for unconscious patients or when oral intake is not possible. Choice B (I.V. bolus of dextrose 50%) is too aggressive for a conscious patient and may lead to complications. Choice D (10 U of fast-acting insulin) would further lower the blood sugar levels and worsen the situation. Administering fast-acting carbohydrates is the safest and most effective approach for conscious patients with hypoglycemia to quickly raise their blood sugar levels and resolve their symptoms.

Correct Answer: D

Rationale: The correct answer is D: Aphasia. Mr. Dela Isla's inability to comprehend what the nurse was saying indicates a language impairment, which is characteristic of aphasia. Aphasia is a condition that affects a person's ability to understand or produce language due to damage to the brain's language centers. Insomnia (A) is a sleep disorder, Agnosia (B) is a perception disorder, and Apraxia (C) is a motor planning disorder, none of which align with Mr. Dela Isla's symptoms.

Correct Answer: D

Rationale: The correct answer is D: Leucovorin. Leucovorin is given during methotrexate therapy to protect normal cells by acting as a rescue agent that helps to reduce the toxic effects of methotrexate. It works by enhancing the efficacy of methotrexate in cancer cells while reducing its toxicity in normal cells. Probenecid (A) is not used to protect normal cells during methotrexate therapy. Cytarabine (B) and Thioguanine (C) are other chemotherapeutic agents and are not typically given to protect normal cells during methotrexate therapy.

Correct Answer: B

Rationale: The correct answer is B: Fluorouracil (5-fluorouracil, 5 FU [Fluoroplex]). Fluorouracil is commonly used in chemotherapy for liver cancer to inhibit cancer cell growth. It is a pyrimidine analog that interferes with DNA synthesis. Fluoxymesterone (A) is an androgen used in hormone replacement therapy, not in liver cancer treatment. Tamoxifen (C) is an antiestrogen used in breast cancer treatment, not liver cancer. Megestrol (D) is a progestin used in hormone therapy for breast cancer and endometrial cancer, not liver cancer. Therefore, the correct choice is B as it directly targets cancer cell growth in liver cancer treatment.