Nokea
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?
- A. Giardia lamblia
- B. Entamoeba histolytica
- C. Cryptosporidium parvum
- D. Cyclospora cayetanensis
Correct Answer: C
Rationale: The patient's symptoms of watery diarrhea, abdominal cramps, and nausea after consuming contaminated water from a stream during a camping trip suggest an infection caused by Cryptosporidium parvum. Cryptosporidium is a protozoan parasite that is commonly transmitted through contaminated water sources. Laboratory tests detecting oocysts in the stool sample are characteristic of Cryptosporidium infection.
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Which of the following dental conditions is characterized by inflammation and infection of the soft tissues surrounding the apex of a tooth root?
- A. Gingivitis
- B. Periodontitis
- C. Dental abscess
- D. Oral candidiasis
Correct Answer: C
Rationale: A dental abscess is a condition characterized by inflammation and infection of the soft tissues surrounding the apex of a tooth root. This infection can result from untreated dental decay, trauma to the tooth, or periodontal disease. The abscess can cause pain, swelling, redness, and even pus formation. Treatment typically involves draining the abscess, removing the source of infection, and possibly prescribing antibiotics to address the infection. If left untreated, a dental abscess can lead to serious complications and spread to other parts of the body.
If a research study involves an intervention and "blinding" which research design is being referred to?
- A. Non-descriptive
- B. Experimental
- C. Phenomenological
- D. Descriptive
Correct Answer: B
Rationale: The research design being referred to in the question is an experimental design. An experimental study involves the manipulation of an independent variable, which is the intervention in this case, to determine its effect on a dependent variable. "Blinding" in research refers to the practice of withholding information about the intervention from certain individuals involved in the study, such as researchers, participants, or outcome assessors. Blinding is commonly used in experimental studies to reduce bias and ensure the integrity of the study results. This combination of intervention and blinding is a hallmark of experimental research designs.
Patient Presley who is ordered for diagnostic pelvic ultrasound asks what preparation she' 11 take. Appropriate preparations for this procedure include_________.
- A. explanation of the procedure
- B. NPO 6 hours before
- C. informed consent
- D. voiding
Correct Answer: D
Rationale: For a diagnostic pelvic ultrasound, one important preparation is to have the patient void or empty their bladder before the procedure. This allows for better visualization of the pelvic organs and structures during the ultrasound scan. A full bladder can obstruct the view and make it difficult to obtain accurate images. Therefore, it is essential for the patient to follow instructions to empty their bladder before the pelvic ultrasound to ensure the best results.
Which of the following structures is responsible for storing and concentrating bile produced by the liver until it is needed for digestion?
- A. Liver
- B. Gallbladder
- C. Pancreas
- D. Spleen
Correct Answer: B
Rationale: The gallbladder is the structure responsible for storing and concentrating bile produced by the liver until it is needed for digestion. Bile is a digestive fluid that helps in the breakdown of fats during the digestive process. When food containing fats enters the small intestine, the gallbladder contracts and releases bile into the small intestine to aid in the digestion and absorption of fats. The gallbladder acts as a reservoir for bile, storing it until it is needed for digestion.
The electric fan now stops every now and then and continues to spark at intervals. The best thing to DO NEXT is to__________.
- A. turn off the fan immediately.
- B. call the maintenance immediately
- C. let it continue to function
- D. request for another fan as soon as possible (ASAP)
Correct Answer: A
Rationale: The best thing to do next is to turn off the fan immediately. The fact that the electric fan is stopping every now and then and sparking at intervals indicates a potential electrical issue or malfunction. This situation poses a safety hazard as it increases the risk of an electrical fire or damage to the fan. Turning off the fan immediately will help prevent any further damage or potential danger. After turning off the fan, it would be advisable to call for maintenance to inspect and repair the fan to ensure it is safe to use again.