c. Temper tantrum
Temper tantrums are common in young children and can involve intense emotional and physical reactions, including screaming, stiffening, and sweating. The child being inconsolable during the episodes but appearing well and developing normally between episodes supports this diagnosis.
b. No investigations at this stage
Initial management often includes dietary advice, hydration, and possibly the use of laxatives. If symptoms persist or worsen, further investigations may then be warranted.
d. Physiological delay in descent
In newborn boys, it is common for the testes to not be fully descended at birth. While most boys have descended testes by the time they are born, a physiological delay in descent can occur, and the testes often descend within the first few months of life. This is a more likely and common scenario compared to other conditions listed.
NOTE: Androgen insensitivity syndrome typically presents with a phenotypically female appearance despite having a 46,XY karyotype.
c. 10 puffs salbutamol inhaler
Given the clinical presentation of respiratory distress with wheezing, this likely represents an acute exacerbation of asthma or a similar reactive airway disease. Salbutamol (a bronchodilator) is the first-line treatment to relieve bronchospasm and improve breathing in such cases.
c. Osteomyelitis
Osteomyelitis, an infection of the bone, is consistent with the symptoms of fever, reduced movement in the affected limb, and systemic signs of infection such as irritability and decreased feeding. The sunken fontanelle indicates dehydration, likely secondary to the fever and reduced intake. Normal urinalysis helps rule out a urinary tract infection.
e. Severe combined immunodeficiency (SCID)
Pneumocystis pneumonia (PCP) is a rare but serious infection that typically occurs in individuals with significant immune deficiencies. The following points support SCID as the most likely underlying cause:
c. Pure tone audiometry
Pure tone audiometry is a key diagnostic test to assess the extent and nature of hearing loss. This objective assessment will help determine the severity of the hearing impairment and guide further management. Here’s why this is the best next step:
b. Inpatient ultrasound
The presence of prolonged jaundice with elevated conjugated bilirubin, pale stools, and dark urine raises concern for a biliary obstruction or other hepatobiliary pathology, such as biliary atresia. An inpatient ultrasound can help in the early diagnosis and management of these conditions, which is crucial for improving outcomes. Early identification and treatment of biliary atresia, for example, are essential for the effectiveness of surgical interventions like the Kasai procedure.
B. Aspirin
Given the presentation described, which strongly suggests Kawasaki disease, the most effective treatment would involve aspirin in addition to IVIG. Aspirin is used in Kawasaki disease to reduce inflammation and the risk of coronary artery complications.
E
Acute otitis media is generally a self-limiting condition that does not require an antibiotic prescription. There are however some exceptions listed below. Analgesia should be given to relieve otalgia. Parents should be advised to seek medical help if the symptoms worsen or do not improve after 3 days.
ABx if > 4 days, younger than 2 with bilateral otitis media, otitis media with perf
If an antibiotic is given, a 5-7 day course of amoxicillin is first-line. In patients with penicillin allergy, erythromycin or clarithromycin should be given.
E. Give topical fusidic acid
The description of a worsening painful rash suggests a possible secondary bacterial infection, especially considering the child’s eczema, which can predispose to bacterial skin infections. Fusidic acid is an antibiotic commonly used topically for skin infections, including those caused by Staphylococcus aureus, which is often implicated in eczema-related skin infections.
e. Reassurance and watchful waiting
In a child with a recent upper respiratory tract infection (coryza, cough, mild fever) and a single enlarged lymph node in the posterior cervical chain, especially without systemic symptoms or concerning findings on examination, a conservative approach with reassurance and watchful waiting is often appropriate.
The likely diagnosis in Reactive cervical lymphadenopathy
e. Urine dipstick
Bedwetting (nocturnal enuresis) in a previously dry child may have various causes, including urinary tract infections, diabetes, constipation, or emotional stress. However, the most common cause is primary nocturnal enuresis, which is more likely if the child has never been dry at night consistently.
b. Alcohol withdrawal syndrome
Alcohol withdrawal syndrome typically occurs in individuals with a history of heavy or prolonged alcohol use who suddenly reduce or cease their alcohol intake. Common symptoms include agitation, tremors, autonomic hyperactivity (such as cool and clammy skin, piloerection), and in severe cases, hallucinations, seizures, or delirium tremens.
Given the presentation of agitation and physical signs such as tremor and autonomic hyperactivity, along with the history of alcohol consumption, alcohol withdrawal syndrome is the most likely diagnosis in this case.
B. Fluoxetine
Fluoxetine is a selective serotonin reuptake inhibitor (SSRI) antidepressant commonly used in the treatment of panic disorder and other anxiety disorders. It is effective in reducing the frequency and severity of panic attacks and can provide long-term relief when taken regularly.
B. Clozapine
Clozapine is an atypical antipsychotic medication commonly used in the treatment of schizophrenia, particularly in cases where other antipsychotic medications have been ineffective or poorly tolerated.
The blood results provided, specifically the low white cell count (WCC), low neutrophil count, and normal lymphocyte count, are consistent with potential hematological side effects of clozapine, such as agranulocytosis or neutropenia. Regular monitoring of blood counts is essential when using clozapine due to the risk of these adverse effects.
c. Prolactin
Amisulpride is an antipsychotic medication that can increase prolactin levels by blocking dopamine receptors in the brain. Elevated prolactin levels can lead to amenorrhea (missed periods) and galactorrhea (milk production from the breasts) in women.
Therefore, checking serum prolactin levels can help assess whether the missed period is due to elevated prolactin levels induced by Amisulpride. If prolactin levels are found to be elevated, this could explain the amenorrhea, and appropriate management or adjustment of medication can be considered.
d. Fluoxetine
Fluoxetine is a selective serotonin reuptake inhibitor (SSRI) antidepressant commonly used in the treatment of major depressive disorder (MDD) in adolescents. It is one of the first-line pharmacological treatments for depression in this age group, as recommended by clinical guidelines.
e. Serum creatine kinase (CK)
The presentation is suggestive of a potential serotonin syndrome, a potentially life-threatening condition characterized by excessive serotonin activity in the central nervous system. Serotonin syndrome can occur as a result of the interaction between serotonergic medications such as Fluoxetine and Risperidone, leading to symptoms such as fever, muscle rigidity, agitation, and autonomic instability.
Serum CK levels can be elevated in serotonin syndrome due to the muscular hyperactivity and breakdown associated with the condition. Elevated CK levels can help support the diagnosis of serotonin syndrome and differentiate it from other conditions presenting with similar symptoms.
a. Acute and transient psychotic disorder
Acute and transient psychotic disorder is characterized by the sudden onset of psychotic symptoms, such as hallucinations, delusions, disorganized thinking, or grossly disorganized or catatonic behavior, lasting for at least a day but less than a month. This diagnosis is appropriate when the symptoms do not meet the criteria for other psychotic disorders like schizophrenia.
Given the brief duration of symptoms (less than a month) and the absence of a clear history of recurrent psychotic episodes or chronicity, acute and transient psychotic disorder is the most likely diagnosis in this case.
b. Fear of gaining weight
An essential diagnostic criterion for anorexia nervosa is a persistent fear of gaining weight or becoming fat, despite being underweight. This fear may manifest in various behaviors, including restrictive eating, excessive exercise, and avoidance of calorie-dense foods.
d. Procyclidine hydrochloride
The presentation of bilateral tremor and cog-wheel rigidity suggests parkinsonism, a movement disorder characterized by symptoms similar to those of Parkinson’s disease. Haloperidol, an antipsychotic medication, can induce extrapyramidal symptoms such as parkinsonism as a side effect.
Procyclidine hydrochloride is an anticholinergic medication commonly used to alleviate extrapyramidal symptoms induced by antipsychotic medications like Haloperidol. It works by blocking the action of acetylcholine in the central nervous system, which can help reduce tremor, rigidity, and other parkinsonian symptoms.
e. Temporal lobe
The temporal lobes play a crucial role in memory formation and retrieval, particularly episodic memory, which involves the recollection of specific events and experiences. Damage or degeneration in the temporal lobes can lead to difficulties in forming new memories and retrieving past memories, resulting in symptoms such as forgetfulness and memory loss.
Given that the individual is experiencing memory problems but still retains functional abilities related to daily living (such as cooking, cleaning, managing finances, and navigating familiar environments), it suggests that the memory impairment is selective and not globally disabling. This pattern of impairment is often seen in conditions affecting the temporal lobes, such as Alzheimer’s disease, which is the most common cause of age-related memory decline and dementia.
Clozapine
Clozapine is considered the gold standard for treatment-resistant schizophrenia. It has been shown to be effective in patients who have not responded to other antipsychotic medications. However, it is typically reserved as a second-line or third-line option due to its potential for serious side effects, including agranulocytosis (a significant reduction in white blood cell count), which requires regular monitoring.