Test your knowledge on...
This quiz is just for fun. Test your diagnostic skills with the photos, then separate truth from fiction in the statements about psoriasis and cephalosporins. Any of the statements below might be true… and any might just be us pulling your leg. Answers are below.
- Genital warts (HPV)
- Herpes simplex type 2
- Gonorrhea
- Chlamydia
- Chancroid (Haemophilus ducreyi)
- Candida balanitis
- Tinea cruris
- Scabies
- Peyronie’s disease
- Zoon’s balanitis
Psoriasis
2. Calcipotriol
True or False
a) is applied twice daily to plaques on the body or face
b) should not be combined with steroids
c) should not be used in patients with plaques covering more than 50% of the body surface
d) generally takes at least a month to show an effect
e) will cause skin atrophy if used long-term
f) in large doses, can upset calcium metabolism
3. Cephalosporins
True or False
a) should never be given to patients with penicillin allergy
b) should not be taken with food
c) must be given in lower doses when renal function is impaired
d) third generation cephalosporins are widely used in meningitis empiric therapy
e) some types can cause an acute sensitivity to alcohol, similar to the drug disulfiram
f) can cause a highly pruritic morbiliform rash if wrongly given in mononucleosis
1. Penile colonies: a)8 Scabies; b)3 Gonorrhea; c)4 Chlamydia; d)9 Peyronie’s disease; e)10 Zoon’s balanitis; f)2 Herpes simplex type 2; g)1Genital warts (HPV); h)5 Chancroid (Haemophilus ducreyi); i)7 Tinea cruris; j)6 Candida balanitis.
2. Calcipotriol: a) False. It’s applied twice daily, but not on the face; b) False. It’s often combined with betamethasone and a pre-mixed formulation is on the market; c) True, it should not be used in patients with plaques covering more than 50% of the body surface; d) False. Calcipotriol usually shows some effect within 2 weeks; e) False. This is a steroid effect; f) True, if over 100 g/week is used.
3. Cephalosporins: a) False. The proportion of penicillin-allergic patients who will have a hypersensitivity reaction to cephalosporins is often given as 10%, but this rests on data using the earliest 1st generation cephalosporins, and rates with later drugs are believed to be much lower; b) False. Older cephalosporins are well absorbed in presence of food, while food actually increases absorption of newer types; c) True; d) True, although 4th generation cephalosporins are better at crossing the blood-brain barrier; e) True, including latamoxef, cefmenoxime, moxalactam, cefoperazone, cefamandole, cefmetazole, and cefotetan. These drugs can also inhibit clotting; f) True, like all beta-lactam antibiotics.
We'll send you $100 if we print your diagnostic challenge. Send case description (app. 450 words) with final diagnosis and outcome to: parkex@parkpub.com.
- Why does this oncologist look toxic?
- What’s the cause of this woman’s chest x-ray abnormality?
- Fact or Fib ? Kidney function, statins and the parathyroid
- What’s the cause of this woman’s acute weakness and numbness?
- What’s causing bilateral leg swelling in a healthy man?
- Fact or Fib ? varicose veins, spider angiomas, deep vein thrombosis
- Joints out of joint
- What’s the diagnosis in this elderly woman with bone pain?
- Fact or Fib? Roseola infantum, erysipelas and myasthenia gravis
- A pain in the neck
- What’s the abnormality present on this x-ray of the right foot?
- Fact or Fib? Granuloma annulare, temporal arteritis and St. John’s wort
- Sinus infection has bizarre sequel
- What’s the cause of the abnormal bone and CT scan results?
- Fact or Fib? on gonorrhea, variocele and gynecomastia
- Hard-case patient presents with hard case
- What’s the problem on this MRI image of a physician’s right ankle?
- Fact or Fib? on neurogenic bladder, acute herpetic gingivostomatitis, gout
- Intermittent hypertension during pregnancy
- What’s the cause of this boy’s x-ray abnormalities?
- How much do you know about… Asthma
- Photos, facts and fibs, What lies beneath…
- Uprisings in the middle ear
- Why does this young girl have hip pain?
- Photos, facts and fibs... X-ray vision — part 2
- RAAS out of kilter
- What’s the cause of this man’s superior mediastinal fullness?
- How much do you know about…Heart disease
- Photos, facts and fibs... X-ray vision — part 1
- Clockwork fevers
- What’s the cause of this man’s esophageal striations?
- Photos, facts and fibs... Bones of contention
- How much do you know about…Type 2 diabetes
- Abdominal cramps
- What’s the cause of this young woman’s chest x-ray abnormalities?
- Photos, facts and fibs... Read my lips
- The spectacular rash
- What’s the cause of this young woman’s shin pain?
- Photos, facts and fibs... Minor problems
- Mexican standoff
- What’s the cause of this man’s visual symptoms?
- Photos, facts and fibs... Penile colonies
- Why the upper back and bilateral shoulder pain?
- For want of a nail…
- Photos, facts and fibs... Little monsters
- Dizzy and fainting
- What’s the cause of this lady’s chronic wrist pain?
- Photos, facts and fibs... Hair today, gone tomorrow
- Blood count in free fall
- What’s the cause of this woman’s chest x-ray abnormality?
- Photos, facts and fibs... Rash decisions
- What do the renal and hepatic findings in this patient indicate?
- Why do I have a slow heart rate?
- Photos, facts and fibs... Hand signals
- What’s causing this woman’s neck mass?
- Not a big enough jerk
- Test your knowledge of the heart with this quick quiz
- ECG Strip Tease
- Multiple clots have a common cause
- What’s causing the abnormality on this woman’s mammogram and breast MRI?
- Photos, facts and fibs... The eyes have it
- What’s causing this man’s foot pain?
- Why are Mrs. J.P.’s legs swollen?
- How much do you know about Parkinson’s disease
- Photos, facts and fibs... lumps, bumps and lesions
- Why is Mrs. D.’s stomach pain getting worse?
- What’s causing this teenager’s scrotal discomfort?
- Photos, facts and fibs... four morbiliform rashes
- Why did this man collapse on the bus?
- Photos, facts and fibs
- What’s the cause of this lumbar CT abnormality?
- Stars of ill omen
- What’s causing this medial right lung mass?
- Not fit for a stress test?
- What caused the abnormal shadow on a chest x-ray?
- Test your knowledge on ankylosing spondylitis and ectopic pregnancy
- Gait disturbance reveals skeletal malformation
- What’s causing the knee pain?
- How much do you know about… Chronic fatigue syndrome
- Asthma exacerbation won’t go away
- How much do you know about... Lupus
- What’s the cause of this chest x-ray abnormality?
- What’s causing the pelvic pain?
- Headache and moodiness
- How much do you know about Oral contraceptives part 2
- What’s causing this patient’s persistent right leg pain?
- Why am I losing weight, Doc?
- How much do you know about… Oral contraceptives
- What’s the incidental finding on this CT scan?
- Constipation relief turns to grief!
- How much do you know about… Endometriosis
- Why is this man’s body swelling?
- What’s causing this woman to waste away?
- Worth cancelling a holiday?
- How much do you know about…
Sjögren’s syndrome - Why the burning sensations in the arms?
- A pain in the thigh
- Why is the epigastric pain worsening?
- How much do you know about... Infections in pregnancy
- What’s the reason for the headache?
- Unsteady on his feet
- The building-business blues
- What’s causing the foot swelling?
- Rising lipids trump executive
- Ex-cop brought down by cough
- What's the cause of the seizures?
- Growing edema and shortness of breath
- "Not another sore throat!"
- Why the hearing loss?
- Salter-Harris classification for growth plate fractures
- A "flu" that's hard on the liver
- Upper GI barium series, what’s your call?
- Perplexing lack of pain
- Abnormality of CT scan, what’s your call?
- Unexplained anxiety
- What a sneeze!
- From diarrhea to disability
- Too healthy to be ill
- Riling rash
