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MedlinePlus liver function tests bilirubin ALT alkaline phosphatase high white blood cell count neutrophils

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pediatric head injury AND vomiting

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https://medlineplus.gov/ency/article/003436.htm

What I can read from the handwritten note

Some words are unclear, but it appears to say:
  • Age: possibly “5 m 4/12” or “5 y 4/12” - unclear
  • Irritability - rest unclear
  • History of fall 1 day back
  • 4 episodes of vomiting
  • History of hypoglycemia
Laboratory values
  • Total bilirubin: 6.2
  • SGPT / ALT: 110
  • ALP: 505
  • WBC: 19,400/µL
  • Neutrophils: 79%
  • Calcium: 7.2 - likely total serum calcium, unit not written

Why this needs urgent medical review

This combination should be assessed urgently by a pediatrician or emergency department today, particularly because there was a fall followed by repeated vomiting and irritability. Go to emergency care immediately if there is ongoing vomiting, unusual sleepiness, confusion, seizure, severe/worsening headache, weakness, loss of consciousness, abnormal behavior, trouble walking, or unequal pupils.
The lab values are also abnormal:
  • WBC 19,400 with neutrophils 79%: suggests significant inflammation or infection, although stress from illness/injury can also raise it.
  • Bilirubin 6.2, ALT 110, ALP 505: may indicate a liver or bile-flow problem. In a child, ALP can also be higher due to bone growth, but with raised bilirubin and ALT it needs proper evaluation. High ALP alongside other abnormal liver tests may point toward a liver or bile-duct cause, as explained by MedlinePlus ALP guidance.
  • Calcium 7.2: low if reported in mg/dL. Low calcium can cause tingling, muscle twitching/cramps, irritability, seizures, or heart-rhythm problems when severe. It should be rechecked along with albumin, ionized calcium, magnesium, phosphate, vitamin D, kidney function, and sometimes an ECG.
A clinician may need to examine the child’s neurological status after the fall and repeat/extend testing, such as glucose, complete liver panel including direct bilirubin and GGT, clotting tests/INR, electrolytes, calcium confirmation, and an abdominal ultrasound or head imaging only if clinically indicated. Liver tests include bilirubin, ALT, ALP, and related measures, as outlined by MedlinePlus.
Do not give calcium, vomiting medicines, antibiotics, or pain medicines unless a clinician who knows the child’s situation advises it.

Tell me what are the dd ? What investigation should i run for this pt?

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pediatric jaundice elevated bilirubin alkaline phosphatase ALT evaluation guideline vomiting head injury hypocalcemia

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pediatric mild traumatic brain injury AND vomiting

Based on the note, I would treat this as an urgent pediatric admission / emergency assessment, not an outpatient liver-profile workup. The key syndrome is:
Vomiting + irritability after a fall, with hyperbilirubinemia, transaminitis/cholestatic pattern, neutrophilic leukocytosis, possible hypocalcemia, and history of hypoglycemia.
First confirm the child’s exact age, bilirubin units, and whether bilirubin is direct or indirect. The differential changes substantially if this is an infant.

Main differential diagnoses

1. Intracranial injury after the fall

  • Concussion
  • Intracranial bleed or cerebral contusion
  • Raised intracranial pressure
Repeated vomiting and irritability after head trauma warrant urgent neurologic assessment. Ask about loss of consciousness, seizure, increasing drowsiness, abnormal behavior, headache, focal weakness, scalp swelling, and mechanism/height of fall. The reported history must also be consistent with the examination; in infants, consider non-accidental injury if it is not.

2. Sepsis or serious bacterial infection with hepatic dysfunction/cholestasis

  • UTI/pyelonephritis, pneumonia, meningitis, enteric infection, bacteremia
  • Sepsis-associated cholestasis
  • Possible biliary infection if fever, jaundice, pain, or hepatomegaly
WBC 19,400/µL with neutrophils 79% supports acute inflammation/infection but is not diagnostic. Leukocytosis of this range can occur with infection, acute inflammation, or physiological stress. Henry's Clinical Diagnosis and Management by Laboratory Methods describes infection/tissue injury as common causes of neutrophilic leukocytosis.

3. Acute hepatitis / hepatocellular injury

  • Hepatitis A, B, E, and depending on context EBV/CMV
  • Drug- or toxin-induced hepatitis, especially acetaminophen/paracetamol, herbal preparations, traditional medicines, or antiepileptics
  • Ischemic liver injury in significant dehydration/shock
  • Less likely autoimmune hepatitis, depending on age and course
Vomiting and jaundice with ALT elevation fit acute hepatitis. ALT 110 is a modest elevation, so synthetic-function tests are more important than ALT alone.

4. Cholestasis or extrahepatic biliary obstruction

  • Choledochal cyst
  • Biliary sludge or stone
  • Cholangitis
  • In an infant: biliary atresia remains a concern if there is persistent conjugated jaundice, pale/acholic stools, dark urine, and hepatomegaly
Elevated bilirubin plus ALP suggests possible cholestasis, but ALP alone is not reliable in growing children because bone growth can elevate it. Obtain GGT and bilirubin fractionation. High ALP with other abnormal liver tests is more suggestive of hepatobiliary disease, as summarized in this jaundice evaluation review.

5. Hypoglycemia-associated metabolic, endocrine, or liver disease

Especially important if the hypoglycemia was documented or recurrent:
  • Sepsis
  • Reduced intake/dehydration
  • Acute liver dysfunction
  • Adrenal insufficiency
  • Inborn errors of metabolism: fatty-acid oxidation disorder, glycogen-storage disorder, galactosemia, tyrosinemia, fructose intolerance, mitochondrial disease
  • Hyperinsulinism, depending on timing and ketones
This is higher priority if the child is an infant, has poor weight gain, hepatomegaly, developmental issues, fasting intolerance, recurrent episodes, or a family history of unexplained infant illness/death.

6. Hemolysis causing predominantly indirect hyperbilirubinemia

  • G6PD deficiency or oxidant trigger
  • Autoimmune hemolysis
  • Hemoglobinopathy
  • Malaria in an endemic setting
Less likely to explain ALT/ALP changes unless there is concurrent liver disease, but must be distinguished using direct/indirect bilirubin and hemolysis markers.

7. True versus apparent hypocalcemia

A calcium of 7.2 mg/dL is low, but total calcium can look low when albumin is low. Causes include:
  • Hypoalbuminemia from liver disease, malnutrition, inflammation
  • Vitamin-D deficiency/rickets
  • Hypomagnesemia
  • Hypoparathyroidism or pseudohypoparathyroidism
  • Renal dysfunction
  • Acute illness/sepsis
Confirm ionized calcium. Evaluation of hypocalcemia includes total and ionized calcium, phosphate, albumin/total protein, PTH, renal function and urinary calcium. Tintinalli's Emergency Medicine recommends this panel for hypocalcemia workup.

Investigations to run

A. Immediate assessment and monitoring

  • Full vitals including temperature, BP, pulse oximetry, capillary refill, weight
  • Mental status / pediatric GCS
  • Focused neurologic examination: pupils, motor asymmetry, tone, fontanelle if applicable
  • Hydration status, rash/petechiae, neck stiffness
  • Look specifically for jaundice, hepatomegaly, splenomegaly, abdominal tenderness/mass, dark urine, pale stools
  • ECG, especially if confirmed low ionized calcium, tetany, seizure, syncope, or arrhythmia concern
  • Frequent bedside glucose checks

B. Priority blood tests now

  1. CBC with differential, peripheral smear, reticulocyte count
  2. CRP and/or procalcitonin
  3. Blood culture before antibiotics, if febrile or clinically unwell
  4. Glucose now, and serial measurements
  5. VBG/ABG, lactate, ketones or beta-hydroxybutyrate
  6. Urea, creatinine, electrolytes: Na, K, Cl, bicarbonate
  7. Calcium workup
    • Repeat total calcium
    • Ionized calcium
    • Albumin and total protein
    • Magnesium
    • Phosphate
    • ALP
    • PTH and 25-OH vitamin D if hypocalcemia is confirmed
  8. Complete liver assessment
    • Total and direct/conjugated bilirubin
    • AST, ALT
    • ALP and GGT
    • Albumin, total protein
    • PT/INR, aPTT, fibrinogen
    • Serum ammonia if altered sensorium, recurrent vomiting, hypoglycemia, or concern for acute liver dysfunction
  9. Hemolysis screen, particularly if indirect bilirubin predominates:
    • Blood group/Rh and direct antiglobulin test
    • LDH, haptoglobin, reticulocytes, smear
    • G6PD assay when appropriate, noting that it can be falsely normal during acute hemolysis
  10. Acetaminophen/paracetamol level if any possibility of ingestion or therapeutic excess, plus careful medication/toxin history.

C. Infection tests guided by findings

  • Urinalysis and urine culture. This should be routine in a young child with unexplained vomiting/irritability or possible sepsis.
  • Chest radiograph only if respiratory signs or hypoxia.
  • Lumbar puncture only after stabilization and when meningitis/encephalitis is suspected. Do not delay imaging if there are signs of raised intracranial pressure or focal neurological deficits.
  • Malaria smear/rapid antigen and dengue testing only if epidemiologically appropriate.
  • Hepatitis testing: HAV IgM, HBsAg plus anti-HBc IgM, anti-HEV IgM where endemic. Add EBV/CMV testing if clinically indicated.

D. Imaging

  1. Non-contrast CT brain urgently if there is any:
    • GCS <15 or declining consciousness
    • Persistent or worsening vomiting
    • Seizure
    • Focal neurology
    • Signs of skull fracture
    • Bulging fontanelle
    • Significant scalp hematoma in a young infant
    • Suspicion of non-accidental injury
    • Unsafe/unreliable observation
If the neurologic examination is entirely normal and the trauma is clearly minor, imaging should be based on a validated pediatric head-injury rule and observation by the treating team. Do not dismiss vomiting simply because abnormal liver tests are also present.
  1. Abdominal ultrasound with hepatobiliary focus and Doppler
    • Liver size/echotexture
    • Gallbladder, bile ducts, choledochal cyst, sludge/stones
    • Portal/hepatic flow
    • Splenomegaly or abdominal mass
This is the first-line imaging study if direct bilirubin or GGT is elevated, jaundice is clinically evident, hepatomegaly is present, or there is concern for obstruction.

E. If hypoglycemia recurs, draw a “critical sample” before dextrose if safely possible

Do not delay treatment of symptomatic hypoglycemia, but obtain:
  • Glucose
  • Insulin and C-peptide
  • Beta-hydroxybutyrate/serum ketones
  • Free fatty acids
  • Cortisol and growth hormone
  • Lactate, ammonia
  • Acylcarnitine profile
  • Serum amino acids
  • Urine ketones and urine organic acids
Discuss early with pediatric endocrinology/metabolic and hepatology if hypoglycemia plus conjugated hyperbilirubinemia/hepatomegaly is confirmed.

Practical first-line order set

CBC/diff + smear, CRP, blood culture, RBS, VBG/lactate/ketones, renal-electrolyte panel, ionized Ca/Mg/PO4/albumin, bilirubin fractionation, AST/ALT/ALP/GGT, PT/INR/aPTT, ammonia, urinalysis/urine culture, abdominal US with Doppler, and head CT if clinical head-injury criteria are met.
The highest immediate priorities are to rule out brain injury, sepsis, hypoglycemia, acute liver failure/coagulopathy, and symptomatic true hypocalcemia.

This is 28y old female with 5mobth pregnancy

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pregnancy abnormal liver tests jaundice bilirubin evaluation HELLP acute fatty liver intrahepatic cholestasis guideline ACOG

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pregnancy liver disease AND diagnosis

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https://publications.smfm.org/publications/374-society-for-m…

This changes the case substantially. She is a 28-year-old at about 20 weeks' gestation with vomiting after a fall, bilirubin 6.2, ALT 110, ALP 505, WBC 19,400 with neutrophilia, and calcium 7.2.
My earlier pediatric differential does not apply.

Priority

She needs same-day assessment in an obstetric emergency unit / hospital, with obstetrics plus medicine/gastroenterology involvement if jaundice is clinically apparent. Bilirubin 6.2 in pregnancy is significant and should not be attributed to pregnancy alone.
Assess immediately for:
  • BP, pulse, temperature, oxygen saturation
  • RUQ/epigastric pain, headache, visual symptoms, edema
  • Pruritus, especially palms and soles
  • Jaundice, dark urine, pale stools
  • Vaginal bleeding, abdominal pain/uterine tenderness, leaking fluid, fetal movement
  • Drug history: paracetamol/acetaminophen, herbal medications, antibiotics, antiepileptics
  • Fever, urinary or respiratory symptoms, sick contacts, contaminated food/water
  • Details of the fall and any abdominal impact

Differential diagnosis

1. Preeclampsia with severe features / HELLP syndrome

At 20 weeks, this must be excluded urgently, especially with vomiting, elevated liver enzymes, headache, visual symptoms, epigastric/RUQ pain, hypertension, proteinuria, thrombocytopenia, or hemolysis.
HELLP means Hemolysis, Elevated Liver enzymes, Low Platelets. It can occasionally occur without obvious hypertension/proteinuria. Pregnancy liver texts note that HELLP often causes RUQ/epigastric pain, nausea/vomiting, headache, and visual symptoms.

2. Acute fatty liver of pregnancy

Less likely at 20 weeks because it classically occurs in the third trimester, but it is dangerous and should be considered if there is jaundice, vomiting, abdominal pain, hypoglycemia, encephalopathy, renal dysfunction, coagulopathy, or rising bilirubin. A history of hypoglycemia makes this particularly important to check.

3. Intrahepatic cholestasis of pregnancy

Consider if she has prominent itching without a primary skin rash, particularly on palms/soles. It commonly appears in the second or third trimester and is diagnosed with elevated serum bile acids after excluding other hepatic/biliary causes. The SMFM guidance recommends bile acids and transaminases in suspected cases.
However, bilirubin 6.2 and vomiting without itch should prompt a search for other causes, not simply label it as cholestasis of pregnancy.

4. Acute viral hepatitis

  • Hepatitis A and E are especially relevant in many endemic regions
  • Hepatitis B, hepatitis C
  • Consider EBV/CMV depending on clinical context
Acute hepatitis can cause nausea/vomiting, jaundice, bilirubin elevation, and raised ALT/AST.

5. Biliary obstruction or gallbladder disease

  • Gallstones/sludge
  • Acute cholecystitis
  • Choledocholithiasis
  • Cholangitis, if fever, jaundice, and RUQ pain
Pregnancy increases gallstone/sludge risk. Transabdominal hepatobiliary ultrasound is safe and first line; MRCP can be used if ductal obstruction remains suspected despite a nondiagnostic ultrasound.

6. Sepsis or infection-associated cholestasis

UTI/pyelonephritis, biliary sepsis, malaria where endemic, and other systemic infections may cause vomiting, leukocytosis, and liver-test abnormalities. WBC 19,400 with 79% neutrophils is above typical pregnancy leukocytosis and warrants infection workup in context.

7. Hemolysis

If bilirubin is predominantly indirect:
  • HELLP-related microangiopathic hemolysis
  • G6PD-related hemolysis
  • Autoimmune hemolysis
  • Malaria, if epidemiologically relevant

8. Drug-induced or toxin-induced liver injury

Actively ask about:
  • Paracetamol/acetaminophen, including combination cold/flu or pain medicines
  • Herbal/traditional products
  • Antitubercular drugs, antibiotics, antiepileptic drugs
  • Alcohol or toxin exposure

9. Trauma-related obstetric complications

The fall itself does not explain bilirubin 6.2, but assess for:
  • Placental abruption
  • Fetomaternal hemorrhage
  • Uterine injury, especially if abdominal trauma
  • Maternal head injury if there was loss of consciousness, persistent vomiting, severe headache, or neurological symptoms
Maternal stabilization and necessary imaging should not be withheld due to pregnancy.

Investigations

Urgent initial tests

Maternal assessment
  • Serial BP measurements
  • Urinalysis and urine protein:creatinine ratio, or 24-hour urine protein if needed
  • Strict input/output monitoring
  • Capillary glucose now and repeated measurements
  • Full neurological exam if vomiting follows a head strike
Blood tests
  1. CBC with platelet count and peripheral smear
  2. Reticulocyte count, LDH, haptoglobin, direct antiglobulin test if hemolysis is suspected
  3. AST, ALT, total bilirubin, direct bilirubin, ALP, GGT, albumin, total protein
  4. PT/INR, aPTT, fibrinogen
  5. Urea, creatinine, electrolytes, bicarbonate
  6. Blood glucose, serum ketones/beta-hydroxybutyrate, lactate
  7. Serum uric acid
  8. Serum ammonia if confusion, drowsiness, recurrent hypoglycemia, or concern for acute liver failure
  9. CRP and blood cultures if febrile, toxic appearing, or sepsis suspected
  10. Calcium workup:
  • Ionized calcium
  • Albumin, magnesium, phosphate
  • PTH and 25-OH vitamin D if true hypocalcemia is confirmed
A total calcium of 7.2 may partly reflect low albumin, so ionized calcium is important. Low calcium can also occur with poor intake/vomiting, vitamin-D deficiency, hypomagnesemia, or systemic illness.
Liver and infection testing
  • Hepatitis A IgM
  • Hepatitis E IgM, where relevant
  • HBsAg and anti-HBc IgM
  • Anti-HCV, with HCV RNA if positive
  • Consider EBV/CMV testing if no other cause emerges
  • Paracetamol level if any possible exposure, even if the history is uncertain
  • Malaria antigen/smear where epidemiologically appropriate
  • Urine microscopy and culture
Pregnancy-specific
  • Fasting or non-fasting total serum bile acids
  • Group and screen/crossmatch if bleeding, abruption, coagulopathy, or deterioration is suspected
  • Obstetric ultrasound for fetal viability, gestational age, placental position, amniotic fluid, fetal growth, and maternal abdominal assessment
  • Fetal Doppler/monitoring according to local viability threshold and obstetric team assessment
Imaging
  • Abdominal ultrasound with hepatobiliary evaluation and Doppler: liver, gallbladder, bile ducts, stones/sludge, duct dilatation, portal/hepatic vessels, ascites.
  • If ultrasound suggests or fails to exclude common-bile-duct obstruction: MRCP without gadolinium can be considered.
  • CT head if indicated after the fall, such as reduced consciousness, persistent/worsening vomiting, seizure, focal deficit, severe headache, or concerning trauma mechanism. Maternal indications take priority.

Interpreting these existing values

  • Bilirubin 6.2: markedly abnormal in pregnancy. Fractionate it immediately into direct and indirect bilirubin.
  • ALT 110: hepatocellular injury, but not by itself diagnostic. Trend it.
  • ALP 505: ALP rises physiologically in pregnancy due to placental production, so it is less useful alone. GGT, direct bilirubin, bile acids, ultrasound, and the clinical picture are more helpful.
  • WBC 19,400 / N 79%: can rise in pregnancy and stress, but this degree plus vomiting and abnormal liver tests requires infection and obstetric-hypertensive disease evaluation.
  • Calcium 7.2: confirm with ionized calcium and albumin correction.

Important red flags for immediate escalation

Immediate senior obstetric/medical review if any of the following are present:
  • BP ≥160/110, severe headache, visual symptoms, RUQ/epigastric pain
  • Platelets falling, hemolysis, rising creatinine, proteinuria
  • Recurrent hypoglycemia
  • INR prolongation, bleeding, confusion, or reduced consciousness
  • Fever/rigors, hypotension, worsening jaundice
  • Vaginal bleeding, uterine tenderness, contractions, reduced fetal movement
  • Persistent vomiting after head injury or any neurological symptom
The first diagnostic priorities are HELLP/preeclampsia, acute liver dysfunction including AFLP, viral hepatitis, biliary obstruction/cholangitis, sepsis, and trauma-related obstetric complications.
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