HELLP Syndrome and the Cases That Hide in Plain Sight

A patient at 32 weeks reports upper abdominal pain and nausea. Her blood pressure is unremarkable. Her urine dip is clean. Every instinct trained on hypertension and protein is about to send you down the wrong path, and the item knows it.

What the letters stand for

HELLP names three findings. Hemolysis, elevated liver enzymes, and low platelets. The acronym is the diagnosis rather than a memory aid bolted onto it, which is unusual and useful.

Each letter is a laboratory finding. None of them is a blood pressure. That single observation explains most of what follows.

The share that arrives without the classic signs

ACOG Practice Bulletin No. 222 reports that up to 15% of cases lack hypertension or proteinuria. Not a handful of oddities. Up to fifteen in every hundred.

So the cuff cannot be the screening tool here, and neither can the dipstick. A normal pressure does not lower your suspicion in a patient whose symptoms and laboratory panel are pointing this direction.

This is also why the syndrome earns its own post rather than sitting inside the hypertensive criteria. The criteria for new hypertension plus one other finding are set out in preeclampsia without proteinuria is still preeclampsia, and this presentation can sit outside them.

Why all three letters are laboratory findings

Hemolysis means red cells are being destroyed, which shows up in the blood film, in bilirubin, and in markers of cell breakdown. Elevated liver enzymes means transaminases that have climbed. Low platelets means a count that has fallen.

Every one of those is a number on a panel rather than something you can see across a room. That is a diagnostic problem, because panels get drawn when somebody already suspects something.

So the suspicion has to come from the story. The symptom pattern is what earns the patient the laboratory workup that makes the diagnosis, which is why the frequencies below are worth memorising.

What patients actually report

The same bulletin gives frequencies for the symptoms, and they are lopsided in a useful way. Right upper quadrant pain or general malaise appears in up to 90% of cases. Nausea and vomiting appear in roughly 50%.

Read those two figures together. The commonest presenting complaint is upper abdominal pain or simply feeling unwell, and half of these patients are also nauseated.

Those are ordinary symptoms. That is the entire difficulty.

Why the presentation misleads

Upper abdominal pain with nausea in a pregnant patient has a long list of benign explanations, and the list is genuinely plausible. Reflux late in pregnancy. Gallbladder disease. A viral illness going around the household. Ordinary third trimester discomfort.

A stem will hand you one of those explanations for free, usually in the patient's own words. Somebody in the case will say it is probably something she ate.

Your job is to notice what does not fit. Pain that is severe, persistent, or unrelieved by the usual measures does not belong to reflux, and malaise that arrived suddenly in a previously well patient is not a virus until something has ruled this out.

The laboratory panel is the tell

Because the diagnosis is defined by laboratory findings, the panel in the stem is not decoration. Hemolysis, rising liver enzymes and falling platelets are the three things being described, and item writers rarely give you all three cleanly.

More often you get one. A platelet count that has dropped since the last visit. A transaminase that is mildly up. A bilirubin that nobody has commented on.

So compare, do not just read. A platelet count trending down across two visits carries more meaning than any single value in isolation.

What it changes about urgency

This is a severe diagnosis, and the honest framing is that the pace of care changes rather than that one nursing action fixes it. Evaluation moves up. Monitoring intensifies. Decisions about delivery stop being deferred.

For an exam item, that translates cleanly. Options built around reassurance, routine follow up, or symptomatic treatment for indigestion are no longer defensible once the pattern is on the page.

Escalation is the answer here more often than any single intervention. Somebody with prescriptive authority needs to see this patient now.

That instinct runs against training in a specific way. Most nursing content teaches you to do something, and here the correct action is often to summon someone rather than to intervene. Items reward that honesty about scope more often than students expect.

A worked stem

A patient at 34 weeks arrives reporting two days of upper abdominal pain and nausea that she blames on a takeaway meal. Her blood pressure is 128 over 78 mmHg. Her urine is negative for protein.

Her platelets have fallen from 210,000 x 10^9/L at her last visit to 118,000 x 10^9/L today, and her transaminases are mildly elevated.

Nothing in her vital signs is abnormal. Everything in her panel is drifting the same direction, and her leading symptom is the one most patients with this diagnosis report.

The answer here is not an antacid, and it is not reassurance. It is escalation, because the pattern on the page is the pattern the published frequencies describe.

The seizure question sits next door

The obvious next worry is a seizure, and the relationship between severe hypertensive disease and eclampsia is less mechanical than most study material implies. The published warning sign figures, including the substantial share of seizures that arrive with no warning at all, are in eclampsia warning signs and the seizures that give none.

Bleeding risk sits next door too. A patient with a falling platelet count who then delivers is walking into the highest risk period for postpartum blood loss, and the published causes are ranked in postpartum hemorrhage and the four Ts, ranked by frequency.

The recognition habit

Carry two figures out of this. Up to 90% report right upper quadrant pain or malaise, and up to 15% have neither hypertension nor proteinuria.

Put them together and the lesson is short. Normal vitals do not clear a pregnant patient with upper abdominal pain. Where this sits in the wider obstetric picture is mapped in maternity and newborn questions and what is really being tested.