The Landau reflex is observed when an infant is:
Anonymous Quiz
23%
Held upright and feet touch the surface
56%
Held horizontally in a face-down position
16%
Placed on their back and touched on the cheek
5%
Placed in a sitting position
A 5-year-old presents with painless cervical lymphadenitis. There is no systemic illness. Culture shows a slow-growing nontuberculous mycobacterium commonly found in water sources. What is the most likely causative agent?
Anonymous Quiz
10%
Mycobacterium tuberculosis
11%
Mycobacterium leprae
46%
Mycobacterium avium-intracellulare
33%
Mycobacterium scrofulaceum
A newborn presents with hearing loss. Imaging shows periventricular intracranial calcifications. Maternal history reveals a viral infection during pregnancy. Which is the most likely causative agent?
Anonymous Quiz
16%
Toxoplasma gondii
21%
Rubella virus
57%
Cytomegalovirus
4%
Herpes simplex virus
2%
Varicella-zoster virus
👍1
Forwarded from Files for Pediatrics and OBGYN | Black Lion 💉💊
🖊 Positive feedback loops act to increase the stimulus that triggered them.
"A Spark causes fire which releases more heat & causes more fire. You hit someone which makes them mad & makes them hit you which makes you mad & hit them back."
"A Spark causes fire which releases more heat & causes more fire. You hit someone which makes them mad & makes them hit you which makes you mad & hit them back."
👍2
The Landau reflex appears at approximately:
Anonymous Quiz
21%
Birth
26%
1 month
30%
6 months
22%
3 months
Forwarded from Internal Medicine Questions Channel 💉💊
A patient with SLE develops worsening nephritis. Rising titers of which antibody would most strongly correlate with disease activity?
Anonymous Quiz
15%
Anti-Smith
16%
Anti-Ro (SSA)
5%
Anti-histone
10%
Anti-phospholipid
54%
Anti-dsDNA
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A 23-year-old woman presents with fatigue, joint pain, and a malar rash. Labs show anti-dsDNA antibodies and low C3/C4 levels. Urinalysis reveals proteinuria and RBC casts. Which mechanism most directly explains her renal findings?
Anonymous Quiz
8%
Direct cytotoxic T-cell–mediated podocyte injury
54%
Deposition of circulating immune complexes in glomeruli
3%
IgA deposition in mesangium
15%
Anti-GBM antibody binding to basement membrane
20%
ANCA-mediated neutrophil activation
Forwarded from Internal Medicine Questions Channel 💉💊
A 22-year-old patient presents with malar rash and arthritis. Which population has the highest overall incidence of SLE?
Anonymous Quiz
7%
Prepubertal children
5%
Men over age 60
11%
Postmenopausal women
77%
Women of reproductive age
1%
Elderly men
Forwarded from Black Lion | School of Medicine 💉💊
Which genetic marker is most strongly associated with spondyloarthropathies?
Anonymous Quiz
12%
HLA-DR4
56%
HLA-B27
13%
HLA-DQ2
19%
HLA-DR3
1%
HLA-B51
Forwarded from Black Lion | School of Medicine 💉💊
Which feature differentiates spondyloarthropathies from rheumatoid arthritis?
Anonymous Quiz
20%
Symmetric small joint involvement
11%
Positive rheumatoid factor
52%
Axial spine involvement
10%
Anti-CCP antibodies
7%
Rheumatoid nodules
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A patient with psoriasis develops dactylitis and nail pitting. Which condition is most likely?
Anonymous Quiz
4%
Rheumatoid arthritis
9%
Gouty arthritis
82%
Psoriatic arthritis
4%
SLE
1%
Osteoarthritis
Forwarded from Black Lion | School of Medicine 💉💊
A 25-year-old woman presents with an erythematous rash across her cheeks and nasal bridge that worsens after sun exposure. The rash spares the nasolabial folds. What is the most likely diagnosis?
Anonymous Quiz
10%
Rosacea
10%
Seborrheic dermatitis
73%
Malar rash of SLE
3%
Dermatomyositis
3%
Contact dermatitis
Forwarded from Black Lion | School of Medicine 💉💊
A patient with chronic scaly plaques on the scalp and face develops areas of scarring alopecia. Biopsy shows interface dermatitis. Which form of lupus is most likely?
Anonymous Quiz
5%
Neonatal lupus
13%
Acute cutaneous lupus
9%
Drug-induced lupus
59%
Discoid lupus erythematosus
15%
Subacute cutaneous lupus
The palmar (grasp) reflex is elicited when:
Anonymous Quiz
5%
The infant’s cheek is touched
90%
The infant’s palm is stimulated
2%
A loud sound is produced
3%
The infant is held upright
The normal response in the palmar grasp reflex is:
Anonymous Quiz
5%
Extension of fingers
8%
Turning of head toward stimulus
86%
Tight flexion of fingers around the object
2%
Stepping movement
The extrusion reflex is best described as:
Anonymous Quiz
10%
Swallowing when milk reaches the pharynx
16%
Sucking when lips are touched
63%
Pushing the tongue outward when the anterior tongue is stimulated
11%
Biting when gums are touched
The plantar (grasp) reflex is elicited by:
Anonymous Quiz
48%
Stroking the lateral sole of the foot
25%
Touching the dorsum of the foot
23%
Pressing an object against the toes
5%
Tapping the heel
Forwarded from Files for Pediatrics and OBGYN | Black Lion 💉💊
🖊 Negative feedback loop: act to decrease the stimulus that triggered them.
Decorticate posturing is best described as:
Anonymous Quiz
17%
Extension of arms and legs
82%
Arms flexed toward the chest
1%
Flaccid paralysis
0%
One-sided weakness
The phrase commonly used to remember decorticate posturing is:
Anonymous Quiz
70%
“Arms to the core”
17%
“Hands to the sky”
5%
“Legs to the core”
8%
“Head to the floor”