Urinary Function

Urinary Function:
Mr. J.R. is a 73-year-old man, who was admitted to the hospital with clinical manifestations of gastroenteritis and possible renal injury. The patient’s chief complaints are fever, nausea with vomiting and diarrhea for 48 hours, weakness, dizziness, and a bothersome metallic taste in the mouth. The patient is pale and sweaty. He had been well until two days ago, when he began to experience severe nausea several hours after eating two burritos for supper. The burritos had been ordered from a local fast-food restaurant. The nausea persisted and he vomited twice with some relief. As the evening progressed, he continued to feel “very bad” and took some Pepto-Bismol to help settle his stomach. Soon thereafter, he began to feel achy and warm. His temperature at the time was 100. 5°F. He has continued to experience nausea, vomiting, and a fever. He has not been able to tolerate any solid foods or liquids. Since yesterday, he has had 5–6 watery bowel movements. He has not noticed any blood in the stools. His wife brought him to the ER because he was becoming weak and dizzy when he tried to stand up. His wife denies any recent travel, use of antibiotics, laxatives, or excessive caffeine, or that her husband has an eating disorder.
Case Study Questions

The attending physician is thinking that Mr. J.R. has developed an Acute Kidney Injury (AKI). Analyzing the case presented name the possible types of Acute Kidney Injury. Link the clinical manifestations described to the different types of Acute Kidney injury.
Create a list of risk factors the patient might have and explain why.
Unfortunately, the damage on J.R. kidney became irreversible and he is now diagnosed with Chronic kidney disease. Please describe the complications that the patient might have on his Hematologic system (Coagulopathy and Anemia) and the pathophysiologic mechanisms involved.
Reproductive Function:
Ms. P.C. is a 19-year-old white female who reports a 2-day history of lower abdominal pain, nausea, emesis and a heavy, malodorous vaginal discharge. She states that she is single, heterosexual, and that she has been sexually active with only one partner for the past eight months. She has no previous history of genitourinary infections or sexually transmitted diseases. She denies IV drug use. Her LMP ended three days ago. Her last intercourse (vaginal) was eight days ago and she states that they did not use a condom. She admits to unprotected sex “every once in a while.” She noted an abnormal vaginal discharge yesterday and she describes it as “thick, greenish-yellow in color, and very smelly.” She denies both oral and rectal intercourse. She does not know if her partner has had a recent genitourinary tract infection, “because he has been away on business for five days.
Microscopic Examination of Vaginal Discharge
(-) yeast or hyphae
(-) flagellated microbes
(+) white blood cells
(+) gram-negative intracellular diplococci
Case Study Questions

According to the case presented, including the clinical manifestations and microscopic examination of the vaginal discharge, what is the most probably diagnosis for Ms. P.C.? Support your answer and explain why you get to that diagnosis.
Based on the vaginal discharged described and the microscopic examination of the sample could you suggest which would be the microorganism involved?
Name the criteria you would use to recommend hospitalization for this patient

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Sample Answer

 

 

Possible Types of Acute Kidney Injury (AKI):

Mr. J.R.’s clinical manifestations suggest several potential types of AKI:

  • Prerenal AKI: Caused by decreased blood flow to the kidneys. Factors like dehydration, sepsis, or medications can contribute. The patient’s gastroenteritis with vomiting and diarrhea, potentially leading to dehydration, supports this possibility.
  • Intrarenal AKI: Direct injury to the kidneys themselves. The burritos from the fast-food restaurant raise concerns about potential food poisoning or toxins (heavy metals, pesticides) impacting the kidneys. Fever and weakness also support this possibility.

Full Answer Section

 

 

  • Postrenal AKI: Blockage in the urinary tract preventing urine flow. Less likely here due to lack of urinary retention or blood in stool.

2. Risk Factors for AKI:

  • Age: Mr. J.R.’s advanced age (73) puts him at higher risk.
  • Dehydration: His vomiting and diarrhea indicate potential dehydration.
  • Underlying conditions: Unknown comorbidities like chronic kidney disease, diabetes, or hypertension could increase risk.
  • Medications: Pepto-Bismol can sometimes affect kidney function, though unlikely in this case.
  • Recent exposure to toxins: The suspect burritos raise possibility of toxins affecting the kidneys.

3. Complications in Chronic Kidney Disease (CKD):

  • Coagulopathy: Kidney dysfunction can affect production of clotting factors, leading to increased bleeding risk (anemia is another complication).
  • Anemia: Reduced kidney function may impair production of erythropoietin, a hormone stimulating red blood cell production, leading to anemia (fatigue, weakness).

4. Pathophysiology of Complications:

  • Coagulopathy: Impaired kidney function disrupts production of various clotting factors like antithrombin and protein C, leading to a pro-coagulant state and increased bleeding risk.
  • Anemia: CKD disrupts erythropoietin production, reducing red blood cell production and oxygen-carrying capacity, leading to anemia and related symptoms.

Reproductive Function Case Study:

1. Most Probable Diagnosis:

Based on the information provided, the most likely diagnosis for Ms. P.C. is bacterial vaginosis (BV) with possible co-infection with Chlamydia trachomatis.

Supporting Evidence:

  • Symptoms: Lower abdominal pain, nausea, malodorous vaginal discharge, suggest vaginal infection.
  • Microscopic examination:
    • White blood cells: Indicate inflammation, consistent with BV.
    • Gram-negative intracellular diplococci: Suggestive of Chlamydia, though further tests are needed to confirm.
    • Absence of yeast and flagellated microbes: Rules out Candida and Trichomonas infections.
  • Sexual history: Unprotected sex increases risk of sexually transmitted infections (STIs) like Chlamydia.

2. Suggested Microorganism:

Based on the symptoms and microscopic findings, Chlamydia trachomatis is the most likely additional microorganism involved. However, definitive diagnosis requires further confirmatory tests like Chlamydia culture or nucleic acid amplification test (NAAT).

3. Hospitalization Criteria:

Hospitalization wouldn’t be necessary for Ms. P.C. at this stage if:

  • She has no severe symptoms like high fever, pelvic pain, or bleeding.
  • She can tolerate oral antibiotics and follow treatment instructions.
  • Close follow-up and monitoring can be ensured.

However, hospitalization may be considered if:

  • She has severe symptoms or complications.
  • She cannot tolerate oral antibiotics or requires intravenous treatment.
  • Close follow-up and adherence to treatment are uncertain.

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