Correct Answer: B

Rationale: Loop diuretics such as furosemide are commonly prescribed for the management of heart failure to reduce fluid overload and lower blood pressure by increasing the excretion of sodium and water. These medications promote the loss of potassium through increased urinary output. Hypokalemia, or low potassium levels in the blood, is the most common electrolyte imbalance associated with loop diuretic therapy. Potassium is an essential electrolyte for proper functioning of the heart, muscles, and nerves. Low potassium levels can lead to symptoms such as muscle weakness, cramps, and potentially life-threatening cardiac arrhythmias. Patients on loop diuretics are often monitored for potassium levels, and sometimes potassium supplements may be prescribed to prevent or correct hypokalemia.

Correct Answer: C

Rationale: Providing emotional support and addressing psychosocial needs demonstrates palliative care principles when caring for a patient experiencing end-of-life symptoms. Palliative care focuses on holistic care that encompasses physical, emotional, and spiritual support for patients and their families during times of serious illness. By addressing emotional needs and providing support, the nurse helps improve the patient's quality of life and comfort during this difficult time. This approach goes beyond just managing physical symptoms and pain, recognizing the importance of supporting the patient's overall well-being. Encouraging the patient to make decisions about life-sustaining treatments is also an important aspect of palliative care, but providing emotional support and addressing psychosocial needs is crucial in palliative care practice.

Correct Answer: B

Rationale: Guava leaves are recommended by the Department of Health as a remedy for cough due to their natural expectorant properties. The leaves contain compounds that help to loosen mucus and make it easier to expel, providing relief from cough and congestion. Guava leaves are commonly used in traditional medicine for respiratory conditions such as cough, bronchitis, and asthma. They help soothe the throat, reduce inflammation, and promote overall respiratory health. It is important to note that while guava leaves can be a helpful remedy for cough, they should be used in conjunction with other treatments as advised by healthcare professionals for best results.

Correct Answer: D

Rationale: The lesson that can be gained from this scenario is that every protocol must be followed. In this situation, failure to replace the defective electric fan immediately and having a missing fire extinguisher directly led to the fire escalating and causing significant damage. By ensuring that all safety protocols and procedures are followed promptly and consistently, potential hazards and risks can be mitigated or prevented. It is crucial for employees to understand the importance of adhering to established protocols in order to maintain a safe working environment and prevent accidents or emergencies.

Correct Answer: B

Rationale: Identifying persons with sputum characterized as blood stained is important in case finding for pulmonary tuberculosis (PTB) in the community. Blood stained sputum, also known as hemoptysis, is a common symptom of TB. It occurs when there is bleeding in the respiratory tract, often as a result of damage to the lungs caused by tuberculosis infection. Therefore, the presence of blood in the sputum is a significant clinical finding that should alert healthcare providers, including nurses, to the possibility of TB. Early identification and diagnosis of individuals with blood stained sputum can lead to prompt treatment and the prevention of further transmission of the disease in the community.