Nursing care
Glomerulonephritis nursing care: what to assess and what to do first
Written and reviewed by Dana Whitfield, RN, MSN · 5 min read · Updated September 2026
Short answer
Glomerulonephritis nursing care centres on fluid and electrolyte monitoring, strict intake and output, daily weights, and blood pressure control while the kidneys recover from an immune-mediated inflammatory injury. The classic trigger is a streptococcal throat or skin infection one to three weeks earlier, and tea-coloured urine is often the first sign a patient reports.
The pathophysiology in one pass
Glomerulonephritis is inflammation of the glomerular capillaries, usually driven by immune complexes depositing in the filtering membrane rather than by direct bacterial invasion of the kidney. In the post-streptococcal form, antibodies formed against a prior group A streptococcal infection cross-react with or deposit in the glomerulus, triggering complement activation and an inflammatory cascade. The membrane becomes more permeable to red cells and protein, and the filtration rate drops as the capillary tufts swell.
This is why the sore throat two weeks before matters clinically. A patient who mentions tea-coloured urine and, on further questioning, had a scratchy throat or skin sore ten to fourteen days earlier is describing a textbook post-streptococcal glomerulonephritis timeline. The kidney injury is not the infection itself; it is the immune response to it, which is why antibiotics alone will not reverse the renal picture once it has started.
Assessment findings that matter
Tea- or cola-coloured urine is the finding to anchor on, and it reflects red blood cells and haemoglobin breakdown products leaking through the damaged glomerular membrane. Ask directly about the appearance of urine and about any recent sore throat, tonsillitis, or impetigo, since patients rarely volunteer that connection unprompted. Periorbital oedema on waking, progressing to dependent oedema through the day, points to sodium and water retention from reduced filtration.
Blood pressure is often elevated, sometimes markedly, because fluid overload and activation of the renin-angiotensin system both push it up. Weigh the patient daily at the same time, in the same clothing, on the same scale, since weight gain is the most sensitive marker of fluid retention before oedema becomes visually obvious. Check for flank or costovertebral angle tenderness, mild fever, and malaise, and review urinalysis for proteinuria, haematuria, and red cell casts, which confirm glomerular rather than lower urinary tract bleeding.
What the exam asks about this
NCLEX items on glomerulonephritis nearly always test whether you can connect a recent strep infection to a current renal presentation, so expect a vignette with a sore throat or skin infection in the history and tea-coloured urine as the presenting complaint. Questions frequently ask you to prioritise assessments, and daily weight and blood pressure monitoring are the correct first answers over less sensitive measures like asking about thirst.
You will also see questions distinguishing glomerulonephritis from nephrotic syndrome and from pyelonephritis. Glomerulonephritis features haematuria as the dominant urinary finding with proteinuria present but usually less than in nephrotic syndrome, whereas pyelonephritis presents with flank pain, fever, and pyuria without the strep history. Diet questions test whether you know sodium and fluid restriction come first, with protein restriction reserved for significant azotaemia rather than applied universally.
Nursing interventions in priority order
Fluid balance comes first: strict intake and output, daily weights, and restriction of sodium and fluids according to the degree of oedema and renal impairment. Monitor blood pressure at intervals set by acuity, since hypertension here can progress to encephalopathy if untreated, and report sustained elevations rather than waiting for a scheduled check.
Monitor laboratory trends, specifically serum creatinine, blood urea nitrogen, potassium, and urinalysis for protein and red cells, to track whether renal function is recovering or worsening. Rest is encouraged during the acute phase to reduce metabolic demand on the kidneys, though strict bed rest is not required once the acute inflammation settles. Educate the patient and family on the sore throat connection, since recognising and treating streptococcal infections promptly is the main prevention strategy for future episodes.
Medications and monitoring
Antibiotics are given if a streptococcal infection is still active at diagnosis, but they treat the infection, not the glomerular inflammation itself, so do not expect them to resolve the haematuria quickly. Diuretics, typically a loop diuretic, manage fluid overload and hypertension, and antihypertensives are added when blood pressure remains elevated despite fluid control.
Corticosteroids or other immunosuppressants are reserved for more severe or rapidly progressive forms, not routine post-streptococcal cases in children, which are usually self-limiting. Whatever the regimen, monitor renal function and electrolytes closely, particularly potassium, since a falling glomerular filtration rate raises the risk of hyperkalaemia. Weigh diuretic response against the patient's volume status daily rather than relying on a fixed dose.
When to escalate
Escalate for a sudden rise in blood pressure with headache, visual disturbance, or altered mental status, since this can signal hypertensive encephalopathy and needs urgent management. A sharp drop in urine output, rising creatinine, or new shortness of breath from fluid overload also warrants immediate provider notification, as these suggest progression toward acute kidney injury or pulmonary oedema.
Report significant hyperkalaemia on labs or ECG changes consistent with it, since this is a medical emergency in a patient with reduced renal clearance. Most post-streptococcal glomerulonephritis in children resolves fully, but an adult presentation, prolonged gross haematuria beyond several weeks, or persistently low complement levels should prompt referral for further nephrology work-up, since these features are less typical of the self-limiting course.
The next step on this is the same as on everything else here: answer questions and read the rationales. Our renal and genitourinary practice questions are the closest set to what this page covers.
Common questions
How long after a strep throat does glomerulonephritis develop?
Post-streptococcal glomerulonephritis typically appears one to three weeks after a throat infection, or three to six weeks after a skin infection such as impetigo. This lag is the time needed for the immune complexes to form and deposit in the glomeruli, so a patient may no longer have an obviously sore throat by the time urine changes appear.
Is glomerulonephritis the same as nephrotic syndrome?
No. Glomerulonephritis is defined by inflammation with haematuria as the dominant feature, while nephrotic syndrome is defined by heavy proteinuria, hypoalbuminaemia, and severe oedema with less prominent blood in the urine. The two can overlap in some conditions, but on the NCLEX they are tested as distinct presentations.
Why is sodium restricted rather than protein in the acute phase?
Sodium restriction addresses the fluid retention and hypertension that dominate the acute presentation. Protein restriction is only added if azotaemia is significant, since unnecessary protein restriction can compromise nutrition without benefit in milder cases.
Does the tea-coloured urine mean permanent kidney damage?
Not usually. In post-streptococcal glomerulonephritis, especially in children, the haematuria and renal function typically resolve over weeks to months as the inflammation subsides. Persistent findings beyond that window, or an adult with progressive renal decline, need further nephrology evaluation.
What should discharge teaching emphasise?
Teach the patient to seek prompt treatment for future sore throats or skin infections, to monitor blood pressure at home if advised, and to report any recurrence of dark urine, swelling, or reduced urine output. Reinforce follow-up urinalysis and blood pressure checks, since resolution is confirmed by trending labs, not by symptoms alone.