Nokea
The nurse is administering nitroglycerin IV to a client with chest pain. What is the most important parameter to monitor?
- A. Blood pressure
- B. Heart rate
- C. Oxygen saturation
- D. Respiratory rate
Correct Answer: A
Rationale: The correct answer is A: Blood pressure. When administering nitroglycerin IV for chest pain, monitoring blood pressure is crucial as it can drop significantly, leading to hypotension. This can cause further complications. Heart rate may increase initially due to vasodilation, but it's not the most important parameter. Oxygen saturation and respiratory rate are also important but monitoring blood pressure takes precedence in this situation.
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This medication type is used to relax and widen blood vessels, improving blood flow and reducing blood pressure.
- A. Vasodilator
- B. Anticoagulant
- C. Diuretic
- D. Beta-blocker
Correct Answer: A
Rationale: The correct answer is A: Vasodilator. Vasodilators relax and widen blood vessels, leading to improved blood flow and decreased blood pressure. They work directly on the muscles in the walls of blood vessels. Anticoagulants (B) prevent blood clot formation, diuretics (C) increase urine production to reduce fluid buildup, and beta-blockers (D) reduce heart rate and blood pressure by blocking the effects of adrenaline. Therefore, only vasodilators directly target blood vessel relaxation and widening to improve blood flow and reduce blood pressure.
Which of the following is a chronic condition characterized by difficulty breathing due to airflow obstruction, commonly associated with long-term smoking?
- A. Chronic obstructive pulmonary disease (COPD)
- B. Asthma
- C. Pulmonary hypertension
- D. Bronchitis
Correct Answer: A
Rationale: Rationale:
1. Chronic obstructive pulmonary disease (COPD) is characterized by airflow obstruction and difficulty breathing.
2. COPD is commonly linked to long-term smoking due to the damage caused to the lungs.
3. Asthma involves airway inflammation and reversible airflow obstruction, not necessarily linked to smoking.
4. Pulmonary hypertension is high blood pressure in the lungs, not directly related to smoking.
5. Bronchitis is inflammation of the bronchial tubes, not synonymous with airflow obstruction.
Summary: COPD is the correct answer as it aligns with the chronic condition characterized by airflow obstruction due to long-term smoking, distinguishing it from the other choices.
Two weeks later, Mr. Cook returns with normal blood pressure readings. Your evaluation of this situation would be
- A. since his blood pressure is normal, he no longer needs medication
- B. since his blood pressure recordings are normal, he no longer needs to maintain his prescribed diet
- C. his medication needs to be adjusted
- D. the combination of weight loss and medication is effective
Correct Answer: D
Rationale: Weight loss and medication contribute to effective blood pressure control.
How is secondary hypertension differentiated from primary hypertension?
- A. Has a more gradual onset than primary hypertension
- B. Does not cause the target organ damage that occurs with primary hypertension
- C. Has a specific cause, such as renal disease, that often can be treated by medicine or surgery
- D. Is caused by age-related changes in BP regulatory mechanisms in people over 65 years of age
Correct Answer: C
Rationale: Secondary hypertension arises from identifiable causes.
What is a condition where the heart's mitral valve does not close properly, causing blood to leak backward into the left atrium?
- A. Mitral valve prolapse
- B. Aortic stenosis
- C. Mitral stenosis
- D. Tricuspid regurgitation
Correct Answer: A
Rationale: Mitral valve prolapse is the correct answer because it is a condition where the mitral valve doesn't close properly, leading to blood leakage into the left atrium during the heart's contraction. This results in a characteristic systolic click on auscultation. Aortic stenosis (B) involves narrowing of the aortic valve, not the mitral valve. Mitral stenosis (C) refers to a narrowing of the mitral valve, not improper closure. Tricuspid regurgitation (D) is when the tricuspid valve doesn't close properly, causing blood to leak backward into the right atrium, not the left atrium.