Correct Answer: C

Rationale: The correct answer is C: 5% dextrose in 0.9% NaCl. This solution is hypertonic because it has a higher osmolarity compared to the other choices. The presence of dextrose and NaCl in this solution increases its solute concentration, causing water to move out of the cells by osmosis. Normal saline (A) and 0.45% NaCl (B) are isotonic solutions, meaning they have the same osmolarity as body fluids. 0.225% NaCl (D) is a hypotonic solution with lower osmolarity than body fluids.

Correct Answer: C

Rationale: The correct answer is C: Performing a physical examination. This method allows the nurse to gather comprehensive data about the patient's health status, including vital signs, physical appearance, and potential health issues. It provides valuable information for developing an individualized care plan. Reviewing literature (A) is important but not for establishing a patient's database. Checking orders (B) and ordering medications (D) are part of the treatment process and do not directly contribute to establishing the initial patient database.

Correct Answer: C

Rationale: The correct answer is C: Performing a physical examination. This method allows the nurse to gather objective data directly from the patient's body, such as vital signs, appearance, and physical findings. It is essential for establishing a patient's baseline health status and identifying any abnormalities or changes. Reviewing literature (A) is important but not a method of data collection. Checking orders (B) is part of the assessment process but does not involve direct data collection. Ordering medications (D) is a clinical intervention and not a data collection method.

Correct Answer: A

Rationale: Rationale: The correct answer is A, overstimulation of the parathyroid hormone. After a thyroidectomy, there is a risk of unintentional damage to the parathyroid glands, leading to hypoparathyroidism. Circumoral tingling, positive Chvostek’s sign, and positive Trousseau’s sign are classic signs of hypocalcemia resulting from parathyroid insufficiency. Choices B, C, and D are incorrect because they do not explain the specific symptoms observed in Emil, which are indicative of low calcium levels due to parathyroid dysfunction.

Correct Answer: C

Rationale: The correct answer is C: 5% dextrose in 0.9% NaCl. This solution is hypertonic because it has a higher osmolarity compared to the other choices. The presence of dextrose and NaCl in this solution increases its solute concentration, causing water to move out of the cells by osmosis. Normal saline (A) and 0.45% NaCl (B) are isotonic solutions, meaning they have the same osmolarity as body fluids. 0.225% NaCl (D) is a hypotonic solution with lower osmolarity than body fluids.