The function of the respiratory system is to supply which of the following to the bloodstream?

Correct Answer: D

Rationale: The function of the respiratory system is to supply oxygen to the bloodstream. When we breathe in, our respiratory system takes in oxygen from the air and delivers it to our body's cells via the bloodstream. Oxygen is essential for cellular respiration, a process where cells break down nutrients to release energy. Therefore, the correct answer is oxygen.

Correct Answer: B

Rationale: Rationale: The correct answer is B) Stenosis. In a client with heart disease and a narrowed valve, stenosis is the expected finding. Stenosis refers to the narrowing of a heart valve, which can occur due to various heart conditions. In this scenario, the client's medical history indicates a narrowed valve, which aligns with the concept of stenosis. Option A) Regurgitation involves the backflow of blood through a valve and is not typically associated with a narrowed valve in heart disease. Option C) Muscle atrophy is not directly related to heart valve conditions. Option D) Hypotension, low blood pressure, may be a general finding in some heart conditions but is not specific to a narrowed valve. Educationally, understanding the implications of heart valve conditions is crucial for nurses caring for clients with cardiac issues. Recognizing the specific findings associated with different valve abnormalities can guide appropriate interventions and promote optimal patient outcomes. This question reinforces the importance of knowledge about cardiac conditions and their manifestations in clinical practice.

Correct Answer: A

Rationale: In this scenario, the nurse should assess the client with end-stage COPD reporting shortness of breath (SOB) after ambulating to the bathroom first (Option A). This choice is correct because patients with end-stage COPD are at high risk for respiratory distress, and any increase in SOB could indicate a worsening of their condition requiring urgent intervention. Option B is incorrect because while a client with DVT requesting an anti-anxiety medication may need attention, it is not as urgent as a potential respiratory distress situation in a client with end-stage COPD. Option C is also incorrect as the client diagnosed with pneumonia needing a sputum specimen to be taken to the lab does not present an immediate threat to their health compared to the client with worsening SOB. Option D is incorrect as well because although the client with empyema has vital sign changes, those changes are not as indicative of an immediate life-threatening situation as the client with end-stage COPD experiencing increased SOB. This educational context highlights the importance of prioritizing patient care based on the urgency of the situation. Understanding the specific needs and risks associated with different conditions helps nurses make quick and accurate decisions to ensure patient safety and well-being.

Correct Answer: C

Rationale: In this scenario, the correct answer is C) Avoid foods containing tyramine. When a client with tuberculosis is prescribed isoniazid, it is crucial to avoid foods containing tyramine as isoniazid can interact with tyramine-rich foods leading to a potentially dangerous hypertensive crisis known as the "cheese effect." Tyramine is found in aged, fermented, and pickled foods like cheese, cured meats, and certain beverages. Option A) Avoiding foods rich in vitamin K is not directly related to isoniazid therapy for tuberculosis. Vitamin K-rich foods are typically avoided in clients on anticoagulant therapy. Option B) Increasing intake of foods high in vitamin C is not specifically necessary for a client on isoniazid therapy for tuberculosis. Vitamin C is not contraindicated but is not directly related to this medication. Option D) Limiting intake of carbohydrates is also not a dietary instruction specifically associated with isoniazid therapy for tuberculosis. Carbohydrate intake may need to be monitored for other health conditions like diabetes, but it is not a primary concern in this context. Educationally, understanding the dietary considerations for clients on specific medications is crucial for nurses to ensure optimal patient outcomes and prevent potential adverse effects. Providing accurate dietary instructions based on medication interactions is an essential aspect of nursing practice to promote patient safety and well-being.

Correct Answer: B

Rationale: In this scenario, the best response for the nurse when a client receiving oxygen therapy via nasal cannula reports nasal dryness is option B) Apply water-soluble lubricant to the nostrils. The rationale behind choosing this option is that nasal dryness is a common side effect of oxygen therapy through a nasal cannula due to the drying effect of the oxygen flow. Applying a water-soluble lubricant helps to moisturize the nasal passages, alleviating dryness and discomfort for the client. Option A is incorrect because increasing the oxygen flow rate can exacerbate nasal dryness rather than alleviate it. It may lead to further discomfort and potential harm to the nasal mucosa. Option C suggests switching to a simple face mask, which is not necessary if the issue is only nasal dryness. Face masks may not be well tolerated by all clients and can be uncomfortable for prolonged use. Option D is not the best response as encouraging the client to breathe through their mouth does not address the underlying issue of nasal dryness caused by oxygen therapy. Moreover, mouth breathing may not be as effective in oxygen delivery for some individuals. Educationally, this question highlights the importance of assessing and managing side effects of oxygen therapy, promoting critical thinking in nursing interventions, and understanding the rationale behind each response to provide safe and effective care for clients undergoing oxygen therapy.