Correct Answer: B

Rationale: The correct answer is B: Smoking. Smoking is the primary risk factor for developing lung cancer. Tobacco smoke contains numerous carcinogens that can damage the cells in the lungs, leading to the development of cancer. Alcohol consumption (Choice A), poor diet (Choice C), and environmental exposure (Choice D) can contribute to overall health risks, but they are not the primary risk factors specifically associated with the development of lung cancer.

Correct Answer: A

Rationale: The correct instruction is to apply testosterone gel after showering and allow it to dry completely before dressing. This helps prevent the transfer of the gel to others and ensures proper absorption. Choice B is incorrect because the gel should not be applied to the genitals. Choice C is incorrect as there is no specific benefit to applying the gel before bedtime. Choice D is incorrect as the gel should not be applied to the face and neck for the treatment of hypogonadism.

Correct Answer: A

Rationale: The correct answer is A: Clarithromycin. In the case of Mycobacterium avium complex disease, a common treatment regimen includes a macrolide antibiotic like clarithromycin or azithromycin in combination with other antimicrobials. Clarithromycin is a key component of the treatment due to its effectiveness against Mycobacterium avium complex. Choice B (Pyrazinamide) is not typically part of the standard treatment for this condition. Choice C (Rifapentine) is mainly used in tuberculosis treatment and is not a primary agent for Mycobacterium avium complex disease. Choice D (Azithromycin) is another suitable macrolide antibiotic for treating Mycobacterium avium complex disease but is not the medication typically used first-line.

Correct Answer: D

Rationale: The correct answer is D, 'The liver.' The liver is not a secondary lymph organ. Secondary lymph organs are primarily involved in the immune response, such as the spleen, Peyer's patches, and adenoids. The spleen filters blood and is essential for immune function. Peyer's patches are located in the small intestine and help protect against pathogens. Adenoids are located in the throat and play a role in immune defense. Therefore, the liver is the incorrect choice as it is not part of the secondary lymph organ system.

Correct Answer: A

Rationale: The correct answer is A: Weight gain. Weight gain is a common side effect of hormone replacement therapy (HRT) due to hormonal changes. Patients should be informed about this possibility as part of their treatment plan. Hair loss (Choice B) is not a common side effect of HRT. Increased libido (Choice C) and decreased energy levels (Choice D) are not typically associated with HRT side effects. Therefore, the nurse should focus on discussing weight gain with the patient.