Named Clinical Signs for NCLEX (Trousseau, Chvostek, Cullen and More)

Named clinical signs are physical exam findings, most named after the clinician who described them, that steer you toward a specific problem. The handful the NCLEX leans on cluster into three buckets: calcium signs (Trousseau and Chvostek for hypocalcemia), abdominal signs (Cullen, Grey Turner, Murphy, McBurney, Blumberg), and head/CNS signs (Kernig, Brudzinski, Battle, raccoon eyes). One name — Homan’s sign — shows up in older test prep but is unreliable and no longer recommended, and you should be able to say why. The reference table below pairs every sign with how it is elicited and exactly what it indicates.

The named-signs master table

Learn each one as a three-part chain: what you do (or see), what the body does in response, and the single diagnosis it steers you toward. The most-tested rows — the calcium signs (Trousseau, Chvostek) and the meningitis signs (Kernig, Brudzinski) — are the ones to master first.

If a stem hands you one of these by name or describes the maneuver, it is usually pointing you straight at the diagnosis and then asking what you do next. Recognize the sign, then move to the action.

The calcium signs: Trousseau and Chvostek

These two are the highest-yield named signs on the exam, and they travel together because they mean the same thing: low calcium. Calcium stabilizes nerve and muscle membranes. When the serum level drops, those membranes get twitchy and fire too easily — that is the neuromuscular irritability you are provoking with both maneuvers.

• Trousseau’s sign is the cuff sign. Inflate a blood-pressure cuff above the client’s systolic pressure and leave it for a couple of minutes. The induced ischemia and pressure unmask the irritable nerves, and the hand contracts into a carpopedal spasm — the wrist and fingers flex and draw together. A clean memory hook: Trousseau = tourniquet, because the cuff acts like one.
• Chvostek’s sign is the face sign. Tap the facial nerve just in front of the ear, over the cheek; a positive response is a twitch of the facial muscles on that side. Chvostek = cheek keeps it straight.

Both are signs of hypocalcemia, and you will often see them in the same scenarios: after a thyroidectomy or parathyroidectomy (the parathyroid glands can be injured or removed), in chronic kidney disease, after massive transfusion of citrated blood, in pancreatitis, and with vitamin D deficiency. Magnesium matters here too — hypomagnesemia impairs parathyroid hormone release and action, so low magnesium frequently causes or sustains low calcium. That is why both Trousseau’s and Chvostek’s can also appear with hypomagnesemia, and why you cannot reliably correct the calcium until the magnesium is replaced.

The nursing priority when these signs are positive is to recognize the patient is at risk for the dangerous end of hypocalcemia — laryngospasm, tetany, and seizures — and to anticipate calcium replacement, keep the environment quiet, and have emergency equipment ready. For the full electrolyte picture, including the values and the other signs of calcium and magnesium imbalance, see our NCLEX fluid and electrolytes review and the NCLEX lab values reference.

The meningitis signs: Kernig and Brudzinski

Kernig’s and Brudzinski’s signs both test for meningeal irritation — inflamed meninges that hurt when stretched. Bacterial or viral meningitis is the classic cause, and either positive sign in a patient with fever, headache, and a stiff neck (nuchal rigidity) should raise your suspicion fast.

• Kernig’s sign: with the client lying supine, flex the hip to 90°, then attempt to extend (straighten) the knee. Pain in the back or the hamstring and resistance that blocks full extension is a positive sign.
• Brudzinski’s sign: with the client supine, passively flex the neck (bring the chin toward the chest). A positive sign is involuntary flexion of the hips and knees — the legs draw up on their own to take tension off the irritated meninges.

A way to keep them apart: Brudzinski = neck flexion (the chin-to-chest maneuver triggers hip/knee flexion), and Kernig = knee extension (pain when you straighten the flexed knee). Both reflect the same underlying problem — stretching inflamed meninges hurts, so the body resists the stretch.

Recognition is the nursing point. Suspected bacterial meningitis is an emergency: place the patient on droplet precautions, anticipate blood cultures and a lumbar puncture, and expect antibiotics to be started promptly — often before the LP results return — because delays cost lives and neurologic function. The broader workup of the patient with headache, neck stiffness, and altered mental status lives in our NCLEX neuro review.

The abdominal signs: Cullen, Grey Turner, Murphy, McBurney, Blumberg

Five abdominal signs cluster by what they tell you — two are bruising patterns that mean bleeding, and three localize pain to an organ.

Cullen’s and Grey Turner’s signs: bruising means bleeding

Both are skin discoloration from blood tracking into the subcutaneous tissue, and both are late findings that signal serious internal hemorrhage.

• Cullen’s sign is bluish bruising around the umbilicus (periumbilical). It indicates intra-abdominal or retroperitoneal bleeding. The two classic causes are acute hemorrhagic pancreatitis and a ruptured ectopic pregnancy — so in a woman of childbearing age with abdominal pain and a positive pregnancy test, Cullen’s sign is an alarming finding.
• Grey Turner’s sign is bruising over the flanks (the sides). It points to retroperitoneal hemorrhage, classically from acute hemorrhagic pancreatitis.

Keep them separate by location: Cullen = central (umbilicus), Turner = the side (flank). When either appears, the patient may be bleeding significantly into a space you cannot see, so the nursing response is to escalate and watch closely for signs of hypovolemic shock.

Murphy’s sign: the gallbladder

Murphy’s sign localizes to the right upper quadrant. Place your hand under the right costal margin and ask the client to take a deep breath; as the inflamed gallbladder descends onto your fingers, the pain makes the client abruptly stop the inhalation. A positive Murphy’s sign points to acute cholecystitis. (Don’t confuse it with Murphy’s punch/costovertebral angle tenderness, which suggests a kidney problem such as pyelonephritis.)

McBurney’s point: the appendix

McBurney’s point is a specific spot in the right lower quadrant — about one-third of the distance along a line drawn from the anterior superior iliac spine (ASIS) toward the umbilicus. Maximal tenderness there is a hallmark of appendicitis. Classic appendicitis pain starts vaguely around the umbilicus and then migrates and localizes to McBurney’s point as the inflammation worsens.

Blumberg’s sign: rebound tenderness

Blumberg’s sign is rebound tenderness: you press deeply into the abdomen and then release quickly, and the pain is sharply worse on release than on pressure. It indicates peritoneal irritation (peritonitis) — for example, from a ruptured appendix or perforated viscus. Rebound tenderness is a worrying sign of an acute surgical abdomen, and it pairs naturally with the appendicitis story above, because a missed appendicitis that perforates produces peritonitis.

For how these abdominal signs fit alongside the rest of the GI exam — cholecystitis, pancreatitis, appendicitis, and bowel emergencies — see our NCLEX GI review.

The head-trauma signs: Battle’s sign and raccoon eyes

Two bruising patterns both point to a basilar skull fracture — a fracture of the bones at the base of the skull:

• Battle’s sign: bruising over the mastoid process, the bony bump behind the ear.
• Raccoon eyes: bruising around both eyes (periorbital), giving a raccoon-mask appearance.

Neither bruise appears immediately — both are typically delayed by 1 to 3 days after the injury and are usually absent on initial evaluation, so a patient who looked fine on arrival can show them later. They often travel with another red flag: leakage of cerebrospinal fluid from the nose (rhinorrhea) or ear (otorrhea), which signals that the protective dura has been breached. That opening is an infection risk and a major nursing concern: do not pack the nose or ear, do not insert a nasogastric tube, and watch for the halo sign (a clear ring of CSF separating out around bloody drainage on gauze). Suspected basilar skull fracture warrants neuro monitoring and physician notification.

Homan’s sign: why this one is outdated

You will still see Homans’ sign (often written “Homan’s sign”) — calf pain on forced dorsiflexion of the foot — listed as a test for deep vein thrombosis in older resources, so you need to recognize the name. But here is the important part: Homan’s sign is unreliable and is no longer recommended. It misses many true DVTs (poor sensitivity) and is positive in plenty of conditions that aren’t clots (poor specificity), and deliberately squeezing or stressing a leg that may contain a clot is not a safe or useful maneuver. Current practice does not use it to rule a DVT in or out.

So what replaces it? Suspect DVT from the actual clinical picture — unilateral calf or leg swelling, warmth, redness, tenderness, and risk factors such as recent surgery, immobility, or hormonal therapy — and confirm with compression venous ultrasound (often guided by a D-dimer and a validated risk score like Wells). If the NCLEX mentions Homan’s sign, the safest, most current answer recognizes it as an unreliable assessment that should not be relied upon. Treat that as the teaching point, not as a maneuver to perform.

Key takeaways

• Calcium signs travel in pairs: Trousseau (BP-cuff carpopedal spasm — “tourniquet”) and Chvostek (facial-nerve tap twitch — “cheek”) both mean hypocalcemia, and hypomagnesemia is a frequent driver.
• Meningitis signs: Kernig (pain on knee extension with hip flexed 90°) and Brudzinski (neck flexion triggers hip/knee flexion) both indicate meningeal irritation.
• Bruising = bleeding: Cullen (periumbilical, central) and Grey Turner (flank) signal serious intra-abdominal/retroperitoneal hemorrhage, classically hemorrhagic pancreatitis; Cullen also flags ruptured ectopic pregnancy.
• Localized abdominal pain: Murphy → cholecystitis, McBurney’s point → appendicitis, Blumberg (rebound) → peritonitis.
• Head trauma: Battle’s sign (mastoid) and raccoon eyes (periorbital) both point to a basilar skull fracture; expect delayed onset and watch for CSF leak.
• Homan’s sign is outdated: unreliable for DVT and no longer recommended — recognize it, but rely on the clinical picture plus compression ultrasound instead.

Frequently Asked Questions

How do I remember the difference between Trousseau’s and Chvostek’s signs?

Use the alliteration. Trousseau starts with a “T” — think tourniquet, because you inflate a blood-pressure cuff (a tourniquet) on the arm and the hand spasms. Chvostek has a “Ch” — think cheek, because you tap the facial nerve over the cheek and the face twitches. Both are signs of hypocalcemia, so once you place them with the low-calcium patient (post-thyroidectomy, chronic kidney disease, after massive transfusion), you are most of the way to the answer.

What do Cullen’s sign and Grey Turner’s sign indicate?

Both are bruising patterns that mean serious internal bleeding. Cullen’s sign is bruising around the umbilicus (central) and signals intra-abdominal or retroperitoneal hemorrhage — classically acute hemorrhagic pancreatitis or a ruptured ectopic pregnancy. Grey Turner’s sign is bruising over the flanks (the sides) and indicates retroperitoneal hemorrhage, classically from hemorrhagic pancreatitis. Remember Cullen as central and Turner as the side.

Is Homan’s sign still used to detect DVT?

No. Homan’s sign — calf pain on forced dorsiflexion of the foot — is unreliable and no longer recommended. It misses many real clots and is falsely positive in conditions that are not clots, and manipulating a leg that might contain a clot is not a safe or useful test. DVT is suspected from the clinical picture (unilateral swelling, warmth, redness, tenderness, risk factors) and confirmed with compression venous ultrasound.

What is the difference between Murphy’s sign, McBurney’s point, and Blumberg’s sign?

They localize different abdominal problems. Murphy’s sign is an abrupt stop in inspiration during right-upper-quadrant palpation and points to acute cholecystitis (gallbladder). McBurney’s point is tenderness in the right lower quadrant, about one-third of the way from the anterior superior iliac spine to the umbilicus, and points to appendicitis. Blumberg’s sign is rebound tenderness — worse on release than on pressure — and indicates peritonitis (peritoneal irritation).

What do Battle’s sign and raccoon eyes tell me?

Both point to a basilar skull fracture. Battle’s sign is bruising over the mastoid process behind the ear, and raccoon eyes are bruising around both eyes (periorbital). Both are typically delayed by 1 to 3 days after the trauma rather than appearing immediately, and they often accompany cerebrospinal fluid leaking from the nose or ears. With a suspected basilar skull fracture, avoid nasal packing and nasogastric tube insertion and watch for the halo sign on drainage.

These signs are pure pattern recognition, and the only way they stick is reps. Review the classic clinical triads next, then practice free NCLEX questions with full rationales for every option, right and wrong — no credit card required.