Which diagnostic procedure is commonly used to establish the diagnosis of lung cancer which provides a detailed description of the tracheobronchial tree and allows for biopsies of suspicious areas?

Correct Answer: B

Rationale: The correct answer is B: Bronchoscopy. This procedure involves inserting a thin, flexible tube with a camera through the mouth or nose to examine the tracheobronchial tree. It allows direct visualization of the airways, collection of tissue samples for biopsy, and detection of abnormalities like tumors. A: CT scan provides detailed images of the lungs but does not allow for direct tissue sampling. C: Sputum cytology involves examining sputum for cancer cells but may not provide accurate results. D: PET scan is used to detect metabolic activity in tissues, including tumors, but does not provide detailed visualization of the airways or allow for biopsies.

Correct Answer: D

Rationale: The correct answer is D because informed consent should be obtained from both the participants and their parents to ensure full understanding and agreement from all parties involved. This is crucial when working with minors to protect their rights and ensure ethical standards are met. Choice A is incorrect as it excludes parental consent, which is necessary for minors. Choice B is also incorrect as it neglects the participants' direct involvement in consenting to participate. Choice C is incorrect because it only includes available relatives, which may not be legally authorized to provide consent on behalf of the participants.

Correct Answer: D

Rationale: The correct answer is D because a journal article about a study using large, previously unpublished databases is a primary source as it presents original research findings firsthand. It contributes new knowledge to the field. A textbook (A) compiles existing information, not original research. A doctoral dissertation (B) critiques research but is not a primary source. A published commentary (C) interprets others' findings, making it a secondary source.

Correct Answer: C

Rationale: The correct answer is C: Systematic sampling. Nurse Sandy is adopting systematic sampling by selecting every third patient with MI after a random start. This method ensures equal chance of selection for each patient and maintains randomness. In contrast, simple random sampling (A) entails each patient having an equal chance of being selected independently. Stratified sampling (B) divides patients into groups based on certain characteristics, which is not the case here. Cluster sampling (D) involves grouping patients and selecting entire groups, which is different from the individual selection in this scenario.

Correct Answer: C

Rationale: The correct action in this scenario is to choose option C: put a line across the sentence, make the correction over it, and sign. This method is recommended because it maintains the integrity of the original record by showing what was initially written and clearly indicating the correction. By crossing out the error, making the correction, and signing the entry, the nurse acknowledges and takes responsibility for the mistake while ensuring the accuracy and transparency of the documentation. Option A is incorrect as crossing the error many times can make the note illegible and may not clearly indicate the correction. Option B is incorrect because using correction fluid can make the note messy and may raise suspicions of tampering with the record. Option D is incorrect as erasing with a rubber eraser can damage the document and also raise concerns about the validity of the information. In summary, option C is the best choice as it allows for a clear and professional correction without compromising the integrity of the progress notes.