HESI 799 RN Exit Exam

Correct Answer: A

Rationale: The correct answer is A: International Normalized Ratio (INR). The INR should be closely monitored in a client with atrial fibrillation to assess the effectiveness and safety of anticoagulation therapy with warfarin. Monitoring the INR helps to ensure that the client is within the therapeutic range to prevent complications such as thrombosis or bleeding. Choices B, C, and D are less relevant in this scenario. While serum glucose levels are important in assessing metabolic status, and white blood cell count and prothrombin time are important indicators for other conditions, they are not the primary focus when a client with atrial fibrillation presents with confusion.

Correct Answer: A

Rationale: The correct answer is A: Cold sensitivity. Cold sensitivity is a common symptom of hypothyroidism, a condition that affects the thyroid gland's ability to produce enough hormones. As a postmenopausal woman presents with cold sensitivity, it may indicate an underlying thyroid issue. Hot flashes (choice B) are more commonly associated with menopause than thyroid dysfunction. While weight gain (choice C) and dry skin (choice D) can also be symptoms of thyroid disorders, cold sensitivity is more specific and indicative of hypothyroidism, requiring prompt evaluation by a healthcare provider.

Correct Answer: C

Rationale: The correct answer is an echocardiogram. This diagnostic test is crucial in assessing ventricular function and identifying the cause of shortness of breath in a client with heart failure. It provides valuable information about the heart's structure, function, and blood flow. While a chest X-ray may show signs of heart failure, it does not directly assess cardiac function like an echocardiogram does. Arterial blood gases (ABGs) are useful to evaluate oxygenation and acid-base balance but do not provide information specific to heart function. An electrocardiogram (ECG) assesses the heart's electrical activity and rhythm, which is important but may not provide the detailed structural information needed in this scenario.

Correct Answer: B

Rationale: The most important instruction for a client who recently underwent a tracheostomy is to teach tracheal suctioning techniques. Suctioning helps clear secretions and maintain an open airway, which is critical for the client's respiratory function and overall well-being. While communication tools, self-care, and cleaning the tracheostomy site are important aspects of care, ensuring proper suctioning techniques is crucial for preventing complications and ensuring the client's safety.

Correct Answer: C

Rationale: Mucous plugging of the tracheostomy tube is the most concerning assessment finding in a client with a tracheostomy. It can lead to airway obstruction, which requires immediate intervention to ensure the client's airway remains patent. Crepitus around the tracheostomy site may indicate subcutaneous emphysema but is not as urgent as a blocked airway. A dry and cracked tracheostomy site may indicate poor skin integrity but does not pose an immediate threat to the client's airway. Yellowing of the skin around the tracheostomy site could suggest a localized infection, but it is not as critical as a potential airway obstruction caused by mucous plugging.