A patient presents with watery diarrhea, abdominal cramps, and nausea after consuming contaminated water from a stream during a camping trip. Laboratory tests reveal oocysts in the stool sample. Which of the following parasites is most likely responsible for this infection?

Correct Answer: C

Rationale: The correct answer is C: Cryptosporidium parvum. This parasite is the most likely cause of the infection due to its presentation with watery diarrhea, abdominal cramps, and nausea after consuming contaminated water. Laboratory tests revealing oocysts in the stool sample further support this diagnosis as Cryptosporidium parvum is known to produce oocysts in the stool. Giardia lamblia (choice A) presents with similar symptoms but does not typically produce oocysts. Entamoeba histolytica (choice B) is more associated with bloody diarrhea and liver abscesses. Cyclospora cayetanensis (choice D) is also associated with watery diarrhea but is less common in this scenario. Thus, based on the symptoms and laboratory findings, Cryptosporidium parvum is the most likely culprit.

Correct Answer: A

Rationale: Precipitous labor is characterized by rapid cervical dilation and descent of the fetal presenting part, leading to a shortened labor duration of less than 3 hours. This rapid progression can increase the risk of maternal complications, such as postpartum hemorrhage. Postpartum hemorrhage is defined as excessive bleeding of more than 500 ml after vaginal delivery or more than 1000 ml after cesarean delivery. The rapid delivery in precipitous labor can result in inadequate uterine contractions after delivery, leading to poor uterine tone and potential postpartum hemorrhage due to uterine atony. Therefore, the nurse should anticipate postpartum hemorrhage as a potential maternal complication in a woman experiencing precipitous labor.

Correct Answer: C

Rationale: The correct answer is C: Malpractice. Malpractice refers to professional negligence or failure to perform duties according to accepted standards of practice. In this scenario, the surgeon's act of cutting the patient's bladder during an appendectomy could be considered a breach of duty and failure to provide the expected standard of care, which falls under malpractice. Battery (A) involves intentional harmful or offensive contact without consent. Negligence (B) is the failure to exercise reasonable care, but in this case, it was more than just a lack of care. Tort (D) refers to a civil wrong that causes harm, but malpractice is a specific type of tort related to professional negligence.

Correct Answer: A

Rationale: The correct answer is A: Identify and count cases. In the initial stages of an outbreak investigation, it is crucial to identify and count cases to understand the scope and magnitude of the outbreak. By counting cases, Nurse Rona and her team can track the spread of the disease, identify common characteristics among those affected, and determine the extent of the outbreak. This step helps in guiding further investigation and control measures. Summary of other choices: B: Define and identify cases - While defining cases is important, it is not the initial step in outbreak investigation. C: Verify diagnosis - Verifying diagnosis is important but comes after identifying and counting cases. D: Prepare for field work - Field work is important in outbreak investigations, but it typically comes after the initial step of identifying and counting cases.

Correct Answer: C

Rationale: The correct answer is C: Cryptosporidium parvum. This parasite is the most likely cause of the infection due to its presentation with watery diarrhea, abdominal cramps, and nausea after consuming contaminated water. Laboratory tests revealing oocysts in the stool sample further support this diagnosis as Cryptosporidium parvum is known to produce oocysts in the stool. Giardia lamblia (choice A) presents with similar symptoms but does not typically produce oocysts. Entamoeba histolytica (choice B) is more associated with bloody diarrhea and liver abscesses. Cyclospora cayetanensis (choice D) is also associated with watery diarrhea but is less common in this scenario. Thus, based on the symptoms and laboratory findings, Cryptosporidium parvum is the most likely culprit.

Correct Answer: C

Rationale: The correct answer is C: unfreezing. Unfreezing is the initial stage in Lewin's planned change model where individuals become open to change by recognizing the need for it. During this stage, the nurse identifies the need for change, plans strategies to implement it, and works on overcoming resistance by ensuring that the driving forces (reasons for change) outweigh the restraining forces (barriers to change). Refreezing (A) is the final stage where the changes are reinforced and integrated into the organization. Movement (B) is the stage where actual change occurs, and in activism (D) is not a recognized stage in Lewin's model.

Correct Answer: C

Rationale: The correct answer is C: cope with anxiety. The nurse's goal is to address Belle's difficulty tolerating frustration, which likely leads to anxiety. By helping Belle develop coping strategies for managing her anxiety, the nurse can assist her in handling frustration more effectively. Options A, B, and D are incorrect because increasing self-esteem, recognizing needs, and mobilizing resources may be important aspects of Belle's overall care but are not directly related to addressing her difficulty with frustration and anxiety. Focusing on coping with anxiety directly targets the root issue and is the most appropriate goal in this context.

Correct Answer: A

Rationale: Rationale: A person's compliance with diabetes management can be influenced by economic status, as financial concerns can impact access to medications, healthy food, and healthcare. This can affect treatment adherence and overall health outcomes. Choice A is correct because addressing economic factors is important in promoting compliance. Choices B, C, and D are incorrect as they do not directly address the relationship between economic status and compliance with diabetes management.

Correct Answer: A

Rationale: The correct answer is A: Salary of nurses. In a study, the researcher is likely to exclude salary as it is not directly related to the quality of patient care. The focus should be on factors like responsiveness, caring attitude, and competence of nurses, which directly impact patient outcomes. Including salary may introduce bias and distract from the main objective of studying patient care quality. Responsiveness, caring attitude, and competence are crucial aspects of nursing care that directly influence patient satisfaction and health outcomes. Salary, on the other hand, is an external factor that may not directly correlate with the quality of care provided.