Correct Answer: A

Rationale: Corrected Rationale: Auscultating the apical pulse and counting for one minute is the appropriate method to accurately measure a newborn's heart rate. The apical pulse is located at the point of maximum impulse (PMI), which is usually at the fourth or fifth intercostal space along the mid-clavicular line. This method allows for a precise assessment of the newborn's heart rate. Choice B, placing a sensor on the index finger, is incorrect because this method is more suitable for measuring oxygen saturation rather than heart rate. Choice C, heating the skin prior to placing the probe, is unnecessary for assessing heart rate and may lead to potential burns in newborns. Choice D, rechecking after 10 minutes, is not appropriate as immediate assessment and intervention may be required if an abnormal heart rate is detected in a newborn.

Correct Answer: A

Rationale: Monitoring the surgical site is crucial to identify early signs of infection post-surgery. Redness, swelling, warmth, or discharge at the surgical site can indicate an infection. While monitoring for fever (choice B) is important as fever can also be a sign of infection, it may not always present immediately post-surgery. Checking blood pressure (choice C) is essential for other purposes but not specifically for monitoring infection post-surgery. Checking for redness (choice D) is limited as redness alone may not always indicate an infection, so it is not as comprehensive as monitoring the surgical site.

Correct Answer: B

Rationale: Glycosylated hemoglobin (HbA1c) is the most accurate test for long-term management of blood glucose levels in individuals with diabetes mellitus. HbA1c reflects average blood glucose levels over the past 2-3 months, providing valuable information on the effectiveness of treatment and disease control. Postprandial blood glucose, glucose tolerance test, and fasting blood glucose are essential for monitoring blood glucose levels at specific times but do not offer the same insight into long-term disease management as HbA1c.

Correct Answer: D

Rationale: Corrected Rationale: Decreased deep tendon reflexes are a common finding in clients with hypothyroidism due to slowed metabolic processes. The other choices, such as bradycardia (slow heart rate), weight gain, and hypertension (high blood pressure) are not typically associated with hypothyroidism. Bradycardia can occur due to the decreased metabolic rate, but it is not a consistent finding. Weight gain is common but not universal, and hypertension is more commonly associated with hyperthyroidism.

Correct Answer: C

Rationale: The correct intervention for a client with COPD is to teach pursed-lip breathing. This technique helps improve oxygenation and reduce dyspnea by promoting better air exchange in the lungs. Encouraging deep breaths may not be suitable for clients with COPD as it can lead to air trapping. Administering oxygen is important in COPD, but teaching pursed-lip breathing is a more direct intervention to help the client manage their condition. Limiting fluid intake is not a standard intervention for COPD and may not be relevant to improving respiratory status.