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: Cryptosporidium parvum is a parasite commonly found in contaminated water sources such as streams or lakes. It causes an infection called cryptosporidiosis, which often presents with symptoms like watery diarrhea, abdominal cramps, and nausea. The oocysts of Cryptosporidium parvum can be identified in stool samples, making it the likely culprit in this scenario. Giardia lamblia, another common waterborne parasite, can also cause similar symptoms but is characterized by trophozoites rather than oocysts in stool samples. Entamoeba histolytica is associated with amoebic dysentery and does not typically present with watery diarrhea. Cyclospora cayetanensis is another parasite causing gastrointestinal symptoms but is not as commonly associated with contaminated water sources as Cryptosporidium parvum.

Correct Answer: C

Rationale: During a transurethral resection of the prostate (TURP), fluid irrigation is commonly used to distend the bladder and flush out tissue debris. However, it is important to prioritize preventing fluid overload in the patient. Limiting the duration of irrigation fluid instillation is a crucial action to prevent excessive fluid absorption and subsequent fluid overload. Prolonged irrigation may lead to an increased risk of fluid overload and electrolyte imbalances, which can result in serious complications such as hyponatremia and fluid volume excess. Monitoring the patient's serum electrolyte levels can be important, but limiting the duration of irrigation is a more immediate and proactive measure to prevent fluid overload. Administering diuretic medications before the procedure may not be appropriate without assessing the patient's specific fluid status and needs. Adjusting the irrigation fluid temperature, while important for hemostasis, does not directly

Correct Answer: A

Rationale: IgA is the primary immunoglobulin class involved in providing passive immunity to newborn infants through breast milk. IgA antibodies are highly concentrated in colostrum and breast milk, offering important protection to newborns against infections. IgG antibodies can also be passed from the mother to the fetus through the placenta, providing passive immunity during pregnancy, but IgA is the main immunoglobulin class transferred through breast milk for protecting the infant's gastrointestinal and respiratory tracts. IgE is mainly involved in allergies and hypersensitivity reactions, while IgM is an early responder in the immune response to infections.

Correct Answer: A

Rationale: The recommended position for a conscious patient experiencing an acute asthma exacerbation is the High-Fowler's position. This position involves the patient sitting upright or almost upright at about a 90-degree angle. The High-Fowler's position helps improve ventilation by expanding the lungs and maximizing airflow in and out of the airways. It also reduces the work of breathing in patients with asthma by allowing gravity to assist in moving air in and out of the lungs more easily. Additionally, this position can help alleviate shortness of breath and improve oxygenation in patients experiencing an asthma exacerbation.

Correct Answer: B

Rationale: The stomach is the organ responsible for the mechanical and chemical digestion of food. When food enters the stomach, it is mixed with stomach acid and enzymes to break down the food into smaller particles. This process helps prepare the food for further digestion and absorption of nutrients. The stomach also plays a key role in the absorption of some nutrients, such as certain vitamins and minerals. Additionally, the stomach's muscular contractions help mix the food with digestive enzymes and propel the partially digested food into the small intestine for further processing and absorption. The liver, pancreas, and large intestine have vital functions in the digestive system, but the stomach is the primary organ responsible for the initial digestion and absorption of nutrients.

Correct Answer: C

Rationale: Cryptosporidium parvum is a parasite commonly found in contaminated water sources such as streams or lakes. It causes an infection called cryptosporidiosis, which often presents with symptoms like watery diarrhea, abdominal cramps, and nausea. The oocysts of Cryptosporidium parvum can be identified in stool samples, making it the likely culprit in this scenario. Giardia lamblia, another common waterborne parasite, can also cause similar symptoms but is characterized by trophozoites rather than oocysts in stool samples. Entamoeba histolytica is associated with amoebic dysentery and does not typically present with watery diarrhea. Cyclospora cayetanensis is another parasite causing gastrointestinal symptoms but is not as commonly associated with contaminated water sources as Cryptosporidium parvum.

Correct Answer: C

Rationale: The nurse's priority action when noticing a malfunctioning anesthesia machine in the operating room should be to inform the anesthesia provider immediately. Anesthesia providers are responsible for administering anesthesia safely during surgical procedures, and they need to be made aware of any equipment issues promptly to ensure patient safety. Continuing with the surgical procedure using a malfunctioning anesthesia machine can pose serious risks to the patient's well-being. Using an alternative anesthesia machine may be an option, but informing the anesthesia provider first ensures that the appropriate action is taken to address the issue effectively. Documenting the malfunction in the equipment log is important for record-keeping purposes, but it should not take precedence over informing the anesthesia provider and taking immediate action to address the problem.

Correct Answer: C

Rationale: Colchicine is a medication commonly prescribed to prevent and treat acute attacks of gout. It works by reducing inflammation caused by the buildup of uric acid crystals in the joints. Colchicine is effective in relieving pain and reducing swelling during gout attacks. It is important to follow the prescribed dosage due to potential side effects such as gastrointestinal upset. Ibuprofen is a nonsteroidal anti-inflammatory drug that can be used for pain relief but is not specific for gout treatment. Probenecid is used for chronic gout by helping the kidneys remove uric acid, not for acute gout attacks. Hydrocortisone is a steroid that may be used in some cases but is not a first-line treatment for acute gouty arthritis.

Correct Answer: C

Rationale: Accurate documentation, whether done manually or electronically by health care professionals, is a critical component of information management in a health care delivery system. Information management involves the collection, storage, processing, and sharing of data to support decision-making and ensure quality care for patients. Properly documented records enable health care providers to have access to relevant information about a patient's medical history, treatment plans, and progress. This helps in delivering effective and coordinated care, reducing medical errors, and improving overall patient outcomes. Moreover, well-kept records are essential for legal and regulatory compliance, billing, quality assessment, and research purposes. Therefore, accurate documentation plays a key role in information management within the healthcare setting.