About Pyelonephritis (Kidney Infection)
Pyelonephritis is a urinary tract infection that occurs when bacteria or other pathogens ascend from the lower urinary tract to the kidneys. The root causes of pyelonephritis include:
- Urinary tract colonization: The development of pyelonephritis begins when harmful microorganisms settle in the urinary tract
- Ascent of pathogens: Bacteria travel from the lower urinary tract up to the kidneys, leading to infection in the kidney's pelvis and surrounding tissue.
Non-modifiable risk factors are factors that cannot be changed. They are:
- Age: Increasing age is a non-modifiable risk factor for pyelonephritis.
- Genetic predisposition: A positive family history of pyelonephritis or related urinary tract infections can increase the risk.
Modifiable risk factors are factors that can be influenced or changed. They are:
- Urinary tract abnormalities: Structural issues in the urinary tract can make it easier for bacteria to move upward, raising the risk of pyelonephritis.
- Urinary stasis: Blocked urine flow or incomplete bladder emptying allows bacteria to grow, increasing the likelihood of infection.
- Catheter use: Urinary catheters can create a direct route for bacteria to enter the urinary tract, raising infection risk.
- Sexual activity: Intercourse can push bacteria into the urinary tract, especially in women, increasing the chance of infection.
It's important to note that these are general risk factors, and individual situations may vary. It's always best to consult with a healthcare professional for personalized advice and guidance regarding pyelonephritis.
The most common early symptoms of pyelonephritis, also known as a kidney infection, can include:
- Pain or burning during urination
- Frequent urination
- Feeling an urge to urinate even if your bladder is empty
- Fever
- Cloudy or bloody urine
- Pressure or cramping in your lower abdomen
As the infection progresses or reaches a higher severity, additional symptoms may occur, such as:
- Pain in your lower back or side
- A fever greater than 101°F (38.3°C)
- Nausea or vomiting
- Delirium (severe confusion)
- Chills
It's important to note that these symptoms can vary from person to person, and some individuals may experience a combination of both early and later-stage symptoms. If you notice any symptoms of pyelonephritis, it's essential to contact your doctor for diagnosis and appropriate treatment.
To diagnose pyelonephritis, the following examinations, tests, and procedures are commonly performed:
- Urine analysis: This test checks for the presence of white blood cells, red blood cells, and bacteria in the urine.
- Urine culture: It helps identify the specific bacteria causing the infection and determine which antibiotics will be effective.
- Blood tests: These can include a complete blood count (CBC) to check for an elevated white blood cell count, as well as a blood culture to detect bacteria in the bloodstream.
- Imaging tests: Ultrasound and CT scan can be used to visualize the kidneys and urinary tract, identify any abnormalities or blockages, and assess the severity of the infection.
To determine the stage or severity of pyelonephritis, additional examinations, tests, and procedures may include:
- DMSA scan: This nuclear medicine imaging test uses a radioactive tracer to assess kidney function and identify areas of inflammation or scarring.
- Single-photon emission computed tomography (SPECT) scan: Single-photon emission computed tomography provides detailed images of the kidneys and can help evaluate renal function.
- Biopsy: A renal biopsy may be performed to obtain a small sample of kidney tissue for further analysis.
It's important to note that these diagnostic procedures should be conducted by healthcare professionals.
The goals of treatment for pyelonephritis are as follows:
- Eliminate the infection: The primary goal is to eradicate the bacteria causing the infection in the kidneys. This is achieved through the use of appropriate antibiotic therapy.
- Relieve symptoms: Treatment aims to alleviate symptoms such as fever, pain, and discomfort associated with pyelonephritis.
The recommended treatments and therapies include:
- Antibiotic therapy: Oral or intravenous antibiotics are prescribed to target and kill the bacteria causing the infection. The choice of antibiotics depends on factors such as the severity of the infection, age, and underlying health conditions. It is important to complete the full course of antibiotics as prescribed by your healthcare professional.
- Fluid intake: Increasing fluid intake helps flush out bacteria from the urinary system and promotes healing. Drinking plenty of water is recommended.
- Pain management: Over-the-counter pain relievers like acetaminophen or nonsteroidal anti-inflammatory drugs (NSAIDs) may be used to alleviate pain and reduce fever. However, it is important to consult with your healthcare professional before taking any medication.
- Rest: Getting adequate rest allows your body to focus on healing and recovering from the infection.
It's important to note that these recommendations are general guidelines and may vary depending on individual circumstances. Consulting with a healthcare professional is essential for accurate diagnosis, appropriate treatment, and personalized care.
Medication dosing may be affected by many factors. Check with your health care professional about dosing for your individual situation. Other side effects can occur. Check with your health care professional or read the information provided with your medication for additional side effect information.