Credit test 1 Flashcards
The typical clinical signs of methemoglobinemia are:
a) Icterus, vomiting
b) Anaemia, tympany
c) Salivation, pruritus
d) Cyanosis, dyspnoe, anoxic convulsions
d) Cyanosis, dyspnoe, anoxic convulsions
Zinc phosphide (Zn3P2) is used as
a) Fungicide
b) Rodenticide
c) Disinfectant
d) Algicide
b) Rodenticide
Which symptom on pupil is manifested in atropine intoxication?
a) Mydriasis
b) Miosis
c) Ptosis
d) Endophthalmia
a) Mydriasis
Blood samples for the chemical-toxicological analysis are preserved by
a) Neutral formalin
b) Only freezing without chemicals
c) 40% formaldehyde solution
d) Sulfuric acid
b) Only freezing without chemicals
The specifications of sampling in fish intoxication are (3 point):
- Take the whole dead fish
- 1 l of intoxicated water
- Map of intoxicated area
- Samples from above and below intoxicated area
The positive result in the determination of mercury without sample adjustment is
a) The filter-paper soaked in AgNO3 turns black
b) The coating, similar to hoard frost, is created on the aluminum wire
c) The filter-paper soaked in Pb(CH3COO)2 turns black
d) The crystal of AgNO3 turns yellow, later black
b) The coating, similar to hoard frost, is created on the aluminum wire
Which substance is determined by the Gutzeit’s reaction?
a) Copper
b) Iron
c) Lead
d) Arsenic
d) Arsenic
Venous blood with higher concentration of H2S is
a) Grey or black colour
b) Dark brown, chocolate colour
c) Bright red colour
d) Green colour
a) Grey or black colour
Iron creates with sodium carbonate
a) Black precipitate
b) White precipitate – later turns brown
c) Red precipitate
d) Yellow precipitate
c) Red precipitate
Red precipitate is created by the reaction of
a) Lead with sodium carbonate
b) Zinc with ammonium sulfide
c) Mercury with potassium iodine
d) Lead with diluted sulfuric acid
c) Mercury with potassium iodine
Excess circulating MtHb is efficiently reconverted into reduced hemoglobin by the
a) Cholinesterase
b) Intraerythrocytary methemoglobin reductase
c) Lactate dehydrogenase
d) Urease
b) Intraerythrocytary methemoglobin reductase
Hemoglobin with carbon monoxide creates:
Carboxyhaemoglobin HbCO
Extra: Methemoglobin with carbon monoxide: Carbocymethaemoglobin (MtHbCO)
Methemoglobinemia is treated by the application of methylene blue ed i.v. at the dose of
a) 100 mg/kg b.w
b) 1-2 mg/kg b.w
c) 55 mg/kg b.w
d) 10-20 mg/kg b.w
b) 1-2 mg/kg b.w
Ethyleneglycol creates the colorless crystals of ……….. in the urine
a) Magnesium ammonium phosphate
b) Calcium oxadate
c) Uric acid
d) Sulphur
b) Calcium oxadate
The concentration of MtHb in blood is determined by
a) Polarographic method
b) Spectrophotometric method
c) Chromatographic method
d) Ion-selective electrode
b) Spectrophotometric method
The body and breath of animals intoxicated by cyanides smell like
a) Garlic
b) Gasoline
c) Bitter almonds
d) Pear
c) Bitter almonds
Three main routes of exposure to noxa are as follows
- Per cutis – Through skin
- Per inhalationem - By inhalation
- Per os – With food and drink
Chemical-toxicological analysis consists of these 3 steps
a) ?
b) Purification
c) Detection
a) Extraction
The methods of detection of the toxic substance are (name min 4 methods)
- Spectophotometry
- Chromatography
- Clinical methods
- Atomic absorbance spectophotometry
- Heat emission
Diagnosis of intoxication consists of 5 steps:
a) Anemnesis (history)
b) Clinical symptomology
c) Pathological-anatomical changes (postmorten picture)
d) ?
e) Biological experiment
d) Chemical-toxicological analysis CHTA
Sulphhemoglobin is formed after exposure to:
a) Carbon monoxide
b) Hydrogen sulphide
c) Nitrite
d) Paracetamolum
b) Hydrogen sulphide
The normal value of methemoglobin in animal organism is:
a) 1-2%
b) 7-10%
c) 1-5%
d) 10-20%
c) 1-5% (3% +/- 2%)
Carboxyhemoglobin is formed after exposure to:
a) Carbon monoxide
b) Hydrogen sulphide
c) Nitrite
d) Paracetamolum
a) Carbon monoxide
Zinc phosphide (Zn3P2) is determined:
a) from water extract
b) without sample adjustment
c) after mineralization
d) by ion-selective electrode
b) without sample adjustment
