The patient's diagnostic tests revealed he was positive for bacterial pneumonia. The MOST likely causative organism of this type of pneumonia is ______.

Correct Answer: B

Rationale: Streptococcus pneumoniae is the most common causative organism of bacterial pneumonia in adults. It is responsible for the majority of community-acquired pneumonia cases. Streptococcus pneumoniae is a gram-positive bacteria and is known to cause typical pneumonia characterized by sudden onset of high fever, productive cough with blood-tinged or rust-colored sputum, chest pain, and consolidation on chest imaging. Other organisms like Legionella pneumophila (choice A), Mycoplasma pneumoniae (choice C), and Haemophilus influenzae (choice D) can also cause pneumonia, but Streptococcus pneumoniae is the most likely culprit based on the patient's test results.

Correct Answer: A

Rationale: The diagnostic examination for osteoporosis typically involves measuring bone density. This is usually done through a dual-energy x-ray absorptiometry (DEXA) scan, which is considered the gold standard for assessing bone density. Osteoporosis is characterized by decreased bone mass and deterioration of bone tissue, leading to increased bone fragility and risk of fractures. Measuring bone density helps in diagnosing osteoporosis by identifying areas of low bone density, assessing the risk of fractures, and monitoring the effectiveness of treatment. Weight, blood volume, and height are not directly used as primary indicators for diagnosing osteoporosis.

Correct Answer: A

Rationale: The nurse should inform the public that rabies can be prevented. This is an extremely important piece of information to help raise awareness about the disease and promote preventive measures such as timely vaccination of both animals and humans. Rabies is a deadly viral infection that affects the central nervous system, and prevention through vaccination is highly effective in controlling its spread. By emphasizing the preventability of rabies, the nurse can educate the public on the importance of taking proactive steps to avoid contracting the disease.

Correct Answer: C

Rationale: If the nurse observes an unusual odor emanating from the surgical site during surgery, it is important to inform the surgeon immediately and assess for signs of infection. Changes in odor can sometimes be an early sign of infection, which requires prompt attention and intervention. By communicating with the surgeon and conducting a thorough assessment, the nurse can help ensure the timely detection and management of any potential complications, such as infection, that may be affecting the patient's surgical outcome. Prompt action in response to unusual observations is crucial to maintaining patient safety and well-being during surgical procedures.

Correct Answer: D

Rationale: Fidelity is a principle in nursing ethics that pertains to being faithful or loyal to commitments and promises made to patients. When Nurse Pat promised to come back to assist in the patient's ambulation after carrying out the physician's order, she is demonstrating fidelity by fulfilling her commitment to the patient's care. This principle helps build trust between the nurse and the patient, ensuring continuity and quality of care.

Correct Answer: D

Rationale: Population structure is a diagram that presents the distribution of a population based on age and sex. It is typically displayed in a pyramid-like style format, with the horizontal axis showing the age groups and the vertical axis showing the percentage or number of individuals in each age group, divided by sex. This helps to visualize how the population is distributed in terms of age and sex, providing important insights into demographic trends, such as age dependency ratio and potential future trends in population growth or decline. Age and sex are the key demographic variables used to construct a population structure diagram.

Correct Answer: A

Rationale: The patient is presenting with chest pain that worsens with exertion and improves with rest, which is characteristic of stable angina. Additionally, ST-segment depression on ECG is a common finding in patients with stable angina. Stable angina is typically caused by coronary artery disease, which leads to partial obstruction of the coronary arteries resulting in inadequate blood flow to the heart muscle during periods of increased demand (such as exertion). The chest pain is usually predictable and reproducible, occurring with similar intensity and duration during episodes of exertion. Rest or nitroglycerin can help relieve the symptoms by increasing coronary blood flow. It is important to differentiate stable angina from unstable angina and acute myocardial infarction, which have different management and prognostic implications.

Correct Answer: B

Rationale: Maternal anxiety can contribute to a prolonged latent phase during labor. Stress and anxiety can trigger the release of stress hormones such as adrenaline, which can interfere with the production of oxytocin, the hormone responsible for initiating contractions. This can result in irregular and ineffective contractions, leading to a prolonged latent phase. It is important for the nurse to assess the woman's anxiety levels and provide reassurance and support to help facilitate the progression of labor.

Correct Answer: D

Rationale: The principles of guidance in handling Richard involve understanding and addressing the behaviors and needs of the child, such as controlling temper tantrums, basing expectations within the child's limitations, and acceptance of certain behaviors like masturbation as normal but to be discouraged in public. However, reinforcing the correct use of language is not typically included as a principle specifically in handling Richard. Therefore, this choice is NOT included among the principles of guidance in this context.