Test
L24 Cardiovascular lab tests
Este test tiene tipos de pregunta que se abren en el reproductor de siempre.
Preguntas del test (8)
1The normal range for the heart rate is 60-100bpm.
- AVerdadero
- BFalso
2The average cardiac output for a healthy man is 5.5 L/min.
- AVerdadero
- BFalso
3Stroke volume is the volume of blood pumped from the ventricles (usually LV) per heart beat. It can be measured. Typically ~ [blank_start]75[blank_end] mL of blood is pumped from the left ventricle through the aorta to the vascular system with a heart beat. The normal range is [blank_start]60-120[blank_end] mL, and this is affected by preload, afterload, & contractility of the ventricles.
It can be measured with [blank_start]echocardiography[blank_end]. The stroke volume = end [blank_start]diastolic[blank_end] volume - end [blank_start]systolic[blank_end] volume, i.e. the amount of blood which leaves the heart is equal to the amount of blood heart that [blank_start]entered[blank_end] the heart, minus the amount of blood [blank_start]left[blank_end] in the heart.
This is measured as blood passes through heart [blank_start]valves[blank_end] during ventricular contraction, and scaled by body [blank_start]surface area[blank_end].- A75
- B60-120
- Cechocardiography
- Ddiastolic
- Esystolic
- Fentered
- Gleft
- Hvalves
- Isurface area
4Cardiac output (volume per time) is not [blank_start]directly[blank_end] measured, but with doppler echocardiography we can find the SV and HR and CO is therefore [blank_start]HR x SV[blank_end].
- Adirectly
- BHR x SV
- CHR / SV
- DHR + SV
5The ejection fraction is the fraction of blood pumped from the ventricles (usually LV, LVEF) with each heart beat. Ejection fraction = [blank_start]stroke[blank_end] volume/[blank_start]end disastolic[blank_end] volume. ~ [blank_start]60[blank_end]% is normal but can appear ‘normal’ in some types of heart [blank_start]failure[blank_end]. It is measured with an echocardiogram or [blank_start]angiography[blank_end].
- Astroke
- Bend disastolic
- C60
- Dfailure
- Eangiography
6Blood pressure is the hydrostatic pressure exerted by circulating blood on vessel [blank_start]wall[blank_end] (usually arterial). It is measured in a large artery (usually [blank_start]brachial[blank_end]) using a [blank_start]sphygmomanometer[blank_end] (+/- a stethoscope) and expressed as systolic pressure over diastolic pressure in mmHg. Blood pressure is a function of [blank_start]CO, TPR[blank_end], and arterial compliance (AC). Normal resting blood pressure in an adult is ~ [blank_start]120/80[blank_end] mmHg and > [blank_start]140[blank_end] mmHg systolic indicates hypertension.
- Awall
- Bbrachial
- Csphygmomanometer
- DCO, TPR
- E120/80
- F140
7Mean arterial pressure, the average arterial blood pressure, is a function of cardiac output and peripheral resistance (MAP = [blank_start]CO x TPR[blank_end]), and has a median normal value of [blank_start]70[blank_end] mmHg (range [blank_start]65-110[blank_end]).
- ACO x TPR
- BCO / TPR
- C65-110
- D70
8Choose the incorrect statement about CVP, central venous pressure(the hydrostatic pressure on the walls of the venae cavae near the right side of the heart.)
- AHas a normal range of 2-6 mmHg
- BIs often used to monitor hypovolaemia, but also is elevated in right-sided heart failure (e.g. in severe COPD)
- CIs measured using central venous catheters or indirectly by measuring jugular venous pressure
- DApproximates left atrial pressure
Información
- Descripción
- El usuario ha eliminado su información de asignaturas Test sobre L24 Cardiovascular lab tests, creado por Usuario eliminado el 14/04/2019.
- Autor
- Usuario eliminado
- Idioma
- English
- Visitas
- 48
- Historial
- Creado el 14 abr 2019 · actualizado el 26 may 2019
- Etiquetas
- Valoración
- Aún sin valoraciones Valora este test