These Plasmodium species have dormant hypnozoite phase

The infective form of malaria is the

28-year-old pregnant patient comes to you to discuss malaria prophylaxis. She wants to go home to Nicaragua for 10 days to visit family. Last time she went, she had to take prophylaxis for 4 weeks after she got back. She wants to know if there is a different medication she can take for a shorter duration of time when she gets back?

32 year old female from Liberia presents to the ED with a fever and headache. She arrived to the US from Africa about 1 week ago. She is febrile to 101F with HR 110 but otherwise stable, on room air. She is alert & oriented x3, neuro exam normal, BMP normal, CBC with Hgb 9, normal bilirubin.

She is diaphoretic but non-toxic appearing, tachycardic, but lungs CTA bilaterally, no evidence of bleeding. The ED screened her for malaria, the rapid test came back positive for P. falciparum. Parasitemia is 7%. What treatment do you recommend in addition to supportive care? Patient is tolerating PO and you are at a magic hospital with a pharmacy that has everything you could ever want.

A 57-year-old man was admitted with new onset confusion and a 2-day history of fevers. The fevers began during his return home from a month-long safari in South Africa. He was found to have severe P. falciparum malaria and treated with IV artesunate with significant improvement. Ten days later, he developed a sudden drop in hemoglobin and rise in bilirubin.

25-year-old male from Benin presents for malaria evaluation. He is found to have P vivax with parasitemia of 2%. His G6PD testing shows deficiency. What do you do for treatment?

32-year-old male from Myanmar comes to the ED for headache and AMS. He is febrile to 102F, tachycardic to 115, BP 97/78 and hypoxic requiring 3LNC. He is disoriented on exam and has a seizure in the ED. Hgb 6.5, Cr 2.3 and urine appears reddish brown, TBili 2.1, glucose is 98. his initial malaria test is positive for P. falciparum with a parasitemia of 8%. What do you recommend starting?Again, you have access to anything and everything you need pharm-wise

If a patient has a history of epilepsy, which malaria prophylaxis should NOT be used?

A pregnant patient is diagnosed with uncomplicated malaria P. falciparum. She is from an area with chloroquine resistance and is in her first trimester of pregnancy. Can you use artemether-lumefantrine?

Is exchange transfusion recommended for malaria?

This African trypanosomiasis is characterized by fever, headache, lymphadenopathy, hepatosplenomegaly, and endocrine disorders over a longer time course (can be over the course of months to years)/

A 30-year-old man presents with 3 days of watery diarrhea, abdominal cramps, and nausea after returning from a backpacking trip in Mexico 2 weeks ago. Stool O&P reveals the following (see image). What is the most likely cause of this patient's symptoms?

A 25-year-old female presents with explosive, watery diarrhea, abdominal bloating, and nausea. A week ago she ate raspberries out of season. Stool microscopy with a modified acid-fast stain reveals spherical oocysts (7.5-10 micrometer diameter). What is the most likely cause of her infection?

A 60-year-old male with HIV (CD4 count 100) presents with chronic, watery diarrhea for the past 3 weeks. His stool sample shows oocysts on modified acid stain (4.2-5.4 micrometers). What is the most likely diagnosis?

A 40-year-old man presents with watery diarrhea, weight loss, and malaise following a trip to Southeast Asia. Stool microscopy shows large oocysts with a modified acid-fast stain (25-30 micrometers in diameter). Choose treatment options for his infection below (multiple correct answers).

A 45-year-old man from a rural area in the tropics presents with watery diarrhea, abdominal cramping, and occasional blood in the stool. He reports a history of working with pigs. Stool examination reveals large ciliated protozoa with a kidney-shaped macronucleus. Which of the following is the most likely causative organism?

Which of the following is the most likely outcome of an untreated Neobalantidium coli infection in a small subset of patients?

A 25-year-old man presents with a 4-week history of intermittent diarrhea, abdominal bloating, and weight loss. He also reports frequent flatulence and malaise. His history reveals that he had a camping trip in a remote area, where he drank water from a lake. Stool examination is as pictured. What is the most appropriate treatment?

A 35 yo M from Mexico presents with fever, leukocytosis and RUQ abdominal pain. Imaging findings as shown. What is the best next step in management?

A 55 yo F has incidental finding of E. histolytica on colon biopsy from screening colonoscopy. She is asymptomatic. What is the next best step in management?